Lenient
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C1 adjective /ˈliː.ni.ənt/

Lenient

寛大な; 優しい; 情け深い; 処罰や判断に厳しくない
Meaning
tolerant; forgiving; merciful; not strict in punishment or judgment
Example
The teacher was lenient with students who submitted their homework late.
教師は宿題を遅れて提出した生徒に寛大でした。
C2 noun /ˈlɔːˌɡɪvər/

lawgiver

立法者
Meaning
A person who creates or enforces laws; a legislator.
Example
Moses is often regarded as a great lawgiver in history.
モーセは歴史の中で偉大な立法者と見なされています。
C2 adjective /ˈlaɪbələs/

libelous

名誉毀損
Meaning
containing or constituting a false published statement that damages a person's reputation
Example
The article was found to be libelous and had to be retracted.
その記事は名誉毀損であると見なされ、撤回する必要があった。
C1 verb /lʊər/

lure

誘惑する
Meaning
to attract or tempt someone, often by offering something appealing
Example
The advertisement lured customers with promises of discounts.
広告は割引の約束で顧客を引き寄せました。
C2 noun /ˈlɪnəmənt/

liniment

リニメント / ローション
Meaning
A liquid or lotion applied to the skin to relieve pain or stiffness.
Example
He rubbed liniment on his sore muscles after the workout.
彼はトレーニング後、痛んだ筋肉にリニメントを擦り込んだ。
C2 noun/verb /ˈlɛv.ən/

leaven

発酵剤
Meaning
a substance, typically yeast, that causes dough to rise; to permeate and modify
Example
A little yeast will leaven the bread dough.
少しのイーストがパン生地を膨らませる。
A1 noun /ˈles.ən/

Lesson

レッスン
Meaning
a period of learning or teaching; an experience that teaches you something
Example
Today's math lesson was about fractions.
今日の数学のレッスンは分数についてでした。
B2 adjective /ˈlaɪ.ə.bəl/

Liable

責任がある; 義務がある;
Meaning
legally responsible; accountable; obligated
Example
The company is liable for any damages caused by their defective products.
その会社は欠陥商品によって引き起こされた損害に責任があります。
C1 verb /ˈlʌmbər/

lumber

重い足取りで歩く
Meaning
to move in a slow, heavy, awkward way
Example
The bear lumbered through the forest in search of food.
クマは食べ物を探して森を重い足取りで歩いた。
C2 noun /ˈlʊŋ.gi/

Lungi

ルンギ
Meaning
a traditional garment worn around the waist in South Asia
Example
He wore a comfortable lungi while relaxing at home.
彼は家でくつろいでいるときに快適なルンギを着ていました。
C1 verb /ˈlɪbəreɪt/

liberate

解放する
Meaning
to set free from imprisonment, oppression, or restraint
Example
The army liberated the city from enemy control.
軍隊は敵の支配から都市を解放した。
C2 noun /ˈluː.mən/

lumen

ルーメン
Meaning
A unit of luminous flux, measuring the amount of visible light emitted by a source.
Example
The bulb produces 800 lumens of light.
電球は800ルーメンの光を発生させます。
C1 adjective /ˈlæk.tɪk/

lactic

乳または乳酸に関連する
Meaning
Relating to milk or lactic acid.
Example
Intense exercise can lead to a buildup of lactic acid in the muscles.
激しい運動は筋肉に乳酸が蓄積される原因となることがあります。
C1 noun /ˈlɔː.ləs.nəs/

Lawlessness

無法状態
Meaning
absence of law and order; a state where laws do not exist or are not enforced
Example
The city descended into lawlessness after the government collapsed.
政府の崩壊後、都市は無法状態に陥った。
C1 adjective /ˈlɪvɪd/

livid

怒っている
Meaning
Extremely angry; furious.
Example
She was livid when she found out about the betrayal.
裏切りを知って彼女は怒っていた。
C1 noun /lɪˈɡæl.ə.ti/

Legality

合法性
Meaning
the quality or state of being legal; accordance with the law
Example
The lawyer questioned the legality of the contract.
弁護士は契約の合法性について疑問を呈しました。
C2 noun /laɪər/

lyre

ライアー
Meaning
a stringed musical instrument of ancient Greece
Example
The musician played a melody on the lyre.
ミュージシャンはライアーでメロディーを演奏しました。
B1 adjective /ˈlaɪv.li/

Lively

活気のある; 元気な; 明るい
Meaning
full of life and energy; animated; cheerful
Example
The children had a lively discussion about their favorite books.
子供たちはお気に入りの本について活気のある議論をしました。
A1 verb /lɪv/

live

住む
Meaning
to have life; to reside in a particular place; to exist
Example
They live in a beautiful house by the lake.
彼らは湖の近くにある美しい家に住んでいます。
C2 noun /luːn/

lune

三日月
Meaning
A crescent-shaped figure formed by two intersecting arcs; also means 'moon' in French.
Example
The mathematician studied the properties of the lune.
数学者は三日月の特性を研究しました。
B1 verb /loʊˈkeɪt/

locate

位置を特定する
Meaning
to find the exact position or place of something
Example
They managed to locate the missing keys under the couch.
彼らはソファの下で失われた鍵を見つけることに成功しました。
B2 noun /liːk/

Leak

漏れ; 穴
Meaning
a hole in a container or covering through which contents escape or enter accidentally
Example
There is a leak in the water pipe.
水道管にリークがあります。
C1 adjective /ˈlɪstləs/

listless

無気力
Meaning
lacking energy, enthusiasm, or interest
Example
She felt listless after working long hours without rest.
長時間休憩なしで働いた後、彼女は無気力に感じていた。
B2 noun /ˈlɪt.ər.ə.si/

Literacy

識字
Meaning
the ability to read and write; competence or knowledge in a specified area
Example
Adult literacy programs help people learn to read.
成人識字プログラムは人々が読むことを学ぶのを助けます。
A1 adjective /lɑːrdʒ/

Large

大きい; 巨大な; 広大な
Meaning
of considerable size, extent, or intensity; big
Example
The large building dominated the city skyline.
その大きなビルは街のスカイラインを支配していた。
A2 adjective /ˈloʊɪst/

lowest

最も低い
Meaning
Of the smallest amount, extent, or intensity; minimal.
Example
The unemployment rate is at its lowest in 15 years.
失業率は15年ぶりの最低水準です。
C2 adjective /luːˈɡuːbriəs/

lugubrious

陰鬱な
Meaning
looking or sounding sad and dismal
Example
His lugubrious expression made everyone feel uneasy.
彼の陰鬱な表情は皆を不安にさせた。
C2 adjective /ˈlaɪðsəm/

lithesome

しなやかで優雅な
Meaning
gracefully flexible and supple
Example
Her lithesome figure allowed her to move like a ballerina.
彼女のしなやかな姿勢は、バレリーナのように動くことを可能にしました。
C2 verb /loʊp/

lope

大きなジャンプを伴う速歩で走る
Meaning
to run or move with a long, bounding stride
Example
The horse loped gracefully across the field.
馬はフィールドを優雅に走っていました。
C1 noun

Longitude

経度
C2 adjective /ˈlɛtʃ.ər.əs/

lecherous

好色
Meaning
having or showing excessive or offensive sexual desire
Example
The character was portrayed as a lecherous old man.
そのキャラクターは好色な老人として描かれました。
B2 noun /ˈlænd.ɪŋ/

Landing

着陸
Meaning
the action of coming to rest on the ground or another surface; a level area at the top of a staircase
Example
The pilot made a smooth landing despite the stormy weather conditions.
パイロットは荒れた天候の中でスムーズな着陸を成功させました。
A2 adjective /laɪt red/

Light Red

薄紅色
Meaning
a pale or diluted shade of red color
Example
She wore a light red dress to the party.
彼女はパーティーに薄紅色のドレスを着ていました。
A1 noun /lænd/

Land

土地; 地面
Meaning
the part of the earth's surface that is not covered by water; an area of ground, soil, or earth
Example
The farmer worked hard to cultivate his land and grow healthy crops.
農家は自分の土地を耕し、健康な作物を育てるために一生懸命働きました。
B2 noun /ˈlɒk.ɪt/

Locket

ロケットペンダント
Meaning
a small ornamental case, typically made of gold or silver, worn on a chain around the neck
Example
She kept her grandmother's photo in the locket.
彼女は祖母の写真をロケットペンダントに入れていました。
C2 noun /ˈlɪŋ.ɡwə/

lingua

言語
Meaning
A language, especially one used for communication among people.
Example
English has become a global lingua for business and science.
英語はビジネスと科学のためのグローバルな言語となっています。
B2 adjective /ˈlɪb.ər.əl/

Liberal

リベラル; 寛容な; 寛大な; 思考が進歩的な
Meaning
open-minded; tolerant; generous; progressive in thinking
Example
She has a liberal attitude towards different cultures and beliefs.
彼女はさまざまな文化や信念に対してリベラルな態度を持っています。
C1 noun /luː/

lieu

代わりに
Meaning
Instead of; in place of.
Example
He gave money in lieu of flowers.
彼は花の代わりにお金を渡した。
C2 noun /ˈluː.məˌnɛr.i/

luminary

著名人
Meaning
A person who inspires or influences others, especially in a particular field.
Example
He is considered a luminary in the world of science.
彼は科学の世界で著名人と見なされています。
B2 noun ˈlɒŋ tɜːm ˈmɛm.ər.i

Long-term memory

長期記憶
Meaning
Such memory that remains stored in the brain for a long time
Example
Repeated practice helps transfer information into long-term memory.
繰り返しの練習が情報を長期記憶に転送するのを助けます。
B2 adjective /ˈluː.nər/

Lunar

月面の
Meaning
relating to the moon; of or concerning the moon
Example
The lunar eclipse was visible last night.
月食は昨晩見ることができました。
B2 noun /lɔːɡ/

Log

丸太
Meaning
a piece of a dead or felled tree trunk or branch, especially one stripped of bark
Example
They sat on a log by the campfire.
彼らはキャンプファイヤーのそばで丸太に座った。
C2 adjective /ˈluːpi/

loopy

おかしい
Meaning
crazy, silly, or eccentric
Example
After working all night, he felt a little loopy.
一晩中働いた後、彼は少しおかしく感じました。
B1 noun /læd/

lad

少年
Meaning
a boy or young man; a male youth
Example
The young lad helped his father in the shop.
その若い少年は店で父親を手伝った。
C1 adjective /ˈluːdɪkrəs/

ludicrous

ばかげた
Meaning
so foolish, unreasonable, or out of place as to be amusing
Example
It is ludicrous to think the Earth is flat.
地球が平らだと思うのはばかげている。
C2 noun /ˌluːkjʊˈbreɪʃən/

lucubration

夜間学習
Meaning
study or meditation, especially at night
Example
His novel was the result of long lucubration.
彼の小説は長い夜間学習の結果でした。
C2 adjective /ˈliːwərd/

leeward

風下の側
Meaning
On or toward the sheltered side away from the wind.
Example
They built their camp on the leeward side of the hill.
彼らは丘の風下の側にキャンプを建てました。
A1 noun /laɪf/

life

生命
Meaning
The existence of an individual human being or animal.
Example
Life is full of challenges and opportunities.
生命は挑戦と機会に満ちています。
C2 noun /ˈlætɪs/

lattice

格子構造
Meaning
A structure of crossed strips arranged in a grid or crisscross pattern.
Example
The garden was decorated with a wooden lattice covered in vines.
庭は、蔦で覆われた木製の格子構造で飾られていました。
C2 noun /ˈlaɪər/

lier

嘘つき
Meaning
a person who tells lies; an alternative spelling of liar
Example
No one trusted him because he was known as a habitual lier.
彼は常習的な嘘つきだったので、誰も彼を信用しなかった。
C1 adjective liːst prɪˈpeərd

least prepared

最も準備ができていない
Meaning
Having the minimum level of readiness or equipment to handle a situation.
Example
Bangladesh is among the least prepared for climate adaptation.
バングラデシュは気候変動適応のために最も準備ができていない国の一つです。
C2 adjective /ˈlɪsɪt/

licit

合法
Meaning
Permitted by law or by rules; legal.
Example
The trade of certain goods is licit under international law.
特定の商品の取引は国際法の下で合法です。
C1 noun /ˈleθ.ər.dʒi/

Lethargy

倦怠; 疲れと非活動的
Meaning
a lack of energy and enthusiasm; tiredness and inactivity
Example
The hot weather caused a feeling of lethargy.
暑い天気は倦怠感を引き起こしました。
C2 verb /ˈlaɪ.ə.naɪz/

lionize

賛美する
Meaning
to treat someone as a celebrity or give a lot of public attention
Example
The press began to lionize the young scientist after his discovery.
彼の発見の後、メディアは若い科学者をライオナイズし始めました。
B1 noun /ˈlaɪtnɪŋ/

lightning

雷光
Meaning
a flash of light in the sky caused by electricity during a storm
Example
The lightning struck a tree near our house.
雷光が私たちの家の近くの木に当たった。
A1 noun /laɪt/

Light

Meaning
the natural agent that stimulates sight and makes things visible; electromagnetic radiation of any wavelength
Example
Turn on the light, it's getting dark.
ライトをつけて、暗くなってきました。
B2 adverb /ˈlaɪtli/

lightly

軽く
Meaning
gently or with little force or weight
Example
She touched the baby’s hand lightly.
彼女は赤ちゃんの手を軽く触れた。
C1 verb ˈlæŋ.ɡwɪʃ

languish

衰退するまたは不振になる
Meaning
To remain in a state of neglect or decline for a long time without improvement.
Example
The project began to languish due to a lack of funding.
そのプロジェクトは資金不足で衰退し始めました。
B2 adjective /ˈlɛdʒəndɛri/

legendary

Meaning
remarkable enough to be famous; often used to describe something that is iconic or widely known
Example
The legendary musician performed in front of a packed stadium.
C2 adjective /lɪˈtɪdʒəs/

litigious

訴訟好き
Meaning
prone to engage in lawsuits or overly inclined to argue legally
Example
He is known as a litigious neighbor who often sues people.
彼はしばしば他人を訴える争い好きな隣人として知られています。
B1 noun /ləˈbɔːr.ə.tɔːr.i/

Laboratory (Lab)

実験室
Meaning
a room or building equipped for scientific experiments, research, or teaching
Example
The scientists conducted their experiments in the well-equipped laboratory.
科学者たちは設備の整った実験室で実験を行いました。
C2 noun /ˈluːkər/

lucre

利益
Meaning
money, especially when regarded as sordid or gained dishonorably
Example
He was motivated more by lucre than by duty.
彼は義務よりも利益に動機づけられていました。
B2 noun /liːɡ/

league

リーグ
Meaning
An association of people or groups united for a common purpose; also a unit of distance (old use).
Example
Several clubs formed a league to promote sportsmanship.
いくつかのクラブがスポーツマンシップを促進するためにリーグを結成した。
C2 noun /ˌlaɪ.pəˈdʒen.ɪ.sɪs/

lipogenesis

脂肪合成
Meaning
The metabolic process of fat synthesis where excess carbohydrates are converted into fatty acids and stored as triglycerides.
Example
Excess carbohydrate intake promotes lipogenesis and fat storage.
過剰な炭水化物の摂取は脂肪合成と脂肪の蓄積を促進します。
C1 noun /ˈlʊkaʊt/

lookout

監視, 見張り
Meaning
A place for watching; a person keeping watch.
Example
The guard kept a lookout for suspicious activity.
ガードは怪しい活動に目を光らせていました。
B2 noun /ˈlɪb.ər.ti/

Liberty

自由
Meaning
the state of being free within society from oppressive restrictions imposed by authority on one's way of life, behavior, or political views
Example
The Statue of Liberty represents freedom and democracy.
自由の女神は自由と民主主義を象徴しています。
C2 noun /lʌɡˈʒʊəriəns/

luxuriance

贅沢
Meaning
abundant growth, richness, or elegance
Example
The garden was filled with the luxuriance of tropical plants.
庭は熱帯植物の贅沢で満たされていた。
C1 noun /liˈeɪzɒn/

liaison

連絡係
Meaning
communication or cooperation between people or groups for a smooth working relationship
Example
She works as a liaison between the company and its clients.
彼女は会社と顧客の間のリエゾンとして働いています。
C2 noun /ˈlɔːŋ.ɡən/

Longan

Meaning
a small round tropical fruit with translucent white flesh and sweet taste, related to lychee
Example
Longan fruits are often eaten fresh or dried and are popular in Asian desserts.
C1 noun /ˈlʌɡ.ɪdʒ væn/

Luggage van

荷物車
Meaning
a vehicle designed for carrying luggage and cargo
Example
The luggage van carried all the passengers' suitcases.
荷物車はすべての乗客のスーツケースを運びました。
B1 noun /ˈlʌvər/

lover

恋人
Meaning
a person who is in a romantic relationship or has strong affection for someone
Example
She met her lover at the café every evening.
彼女は毎晩カフェで恋人と会っていました。
C2 noun /ˌlɛksɪˈkɒɡrəfər/

lexicographer

辞書編纂者
Meaning
A person who compiles, writes, or edits dictionaries.
Example
The lexicographer spent years compiling the dictionary.
そのレキシコグラファーは辞書を編纂するのに数年を費やした。
C1 noun /liːtʃ/

Leech

ヒル
Meaning
an aquatic or terrestrial annelid worm with suckers at both ends; metaphorically, a person who extorts profit from others
Example
The leech attached itself to his leg while swimming.
ヒルは泳いでいる間、彼の足にくっついた。
A2 noun ˈliːdər

leader

リーダー
Meaning
A person who leads or commands a group, organization, or country.
Example
The leader inspired people.
リーダーは人々を鼓舞しました。
C2 noun /laʊs/

Louse

シラミ
Meaning
a small insect that lives on the hair or skin of people or animals
Example
The child had a louse in his hair.
その子供の髪にシラミがいました。
C1 noun /ˈlɛdʒɪsleɪtər/

legislator

立法者
Meaning
a person who makes laws, especially a member of a legislative body
Example
The legislator introduced a bill to improve healthcare.
立法者は医療サービス改善のために法案を提出しました。
C1 verb /luːt/

loot

略奪する
Meaning
to steal goods, typically during war, riot, or chaos
Example
The rioters looted several shops during the protest.
抗議の間に暴動者たちはいくつかの店を略奪した。
B2 adjective /ˈlaɪf.lɒŋ/

lifelong

生涯
Meaning
Lasting or existing for the whole of a person's life.
Example
They remained lifelong friends.
彼らは生涯の友人でした。
C2 noun /ˈlɔːrdlɪŋ/

lordling

小さな領主
Meaning
A young or petty lord; someone of minor nobility.
Example
The arrogant lordling demanded respect despite his lack of experience.
傲慢なロードリングは経験不足にもかかわらず、尊敬を要求した。
C1 noun, adjective /ˈlæksətɪv/

laxative

下剤
Meaning
A medicine or substance that stimulates bowel movements; tending to loosen or relieve constipation.
Example
The doctor prescribed a mild laxative for her condition.
医者は彼女の状態のために軽い下剤を処方しました。
C2 verb /ˈlɪk.wɪ.faɪ/

liquefy

液化する
Meaning
to make or become liquid
Example
The heat will liquefy the butter in a few minutes.
熱は数分でバターを液体に変えるでしょう。
C2 adjective /loʊˈkweɪʃəs/

loquacious

おしゃべりな
Meaning
tending to talk a great deal; very talkative
Example
The loquacious child entertained everyone with endless stories.
おしゃべりな子供は、終わりのない物語で皆を楽しませた。
B1 noun /ˈlek.tʃər/

Lecture

講義
Meaning
an educational talk to an audience, especially to students in a university or college
Example
The professor gave an interesting lecture on history.
教授は歴史について興味深いレクチャーを行いました。
A1 verb /lʊk/

look

見る
Meaning
to direct your eyes to see something; to appear or seem
Example
Look at the beautiful sunset in the sky.
空に美しい夕日を見てください。
C2 verb /lʌɡ/

lug

Meaning
to carry or drag something heavy or cumbersome with effort
Example
He had to lug the suitcase up three flights of stairs.
B2 noun /ˈleɪ.zi.nəs/

Laziness

怠惰
Meaning
the quality of being unwilling to work or use energy; idleness
Example
His laziness prevented him from achieving his goals.
彼の怠惰さが彼の目標達成を妨げた。
A2 phrasal verb /lʊk ˈɑːftər/

look after

世話をする
Meaning
to take care of someone or something; to be responsible for someone’s well-being
Example
She looks after her younger brother while their parents are at work.
両親が仕事の間、彼女は弟の世話をする。
A1 noun /ˈlaɪ.brər.i/

Library

図書館
Meaning
a building or room containing collections of books, periodicals, and sometimes films and recorded music for people to read, borrow, or refer to
Example
She goes to the library every weekend to study.
彼女は毎週末、勉強のために図書館に行きます。
C1 noun /ˈlɪɡ.əmənt/

ligament

靭帯組織
Meaning
A tough band of tissue that connects bones at a joint.
Example
He tore a ligament in his knee while playing football.
サッカーをしているときに膝の靭帯を切った。
C2 noun /lɔːŋ ɡɔːrd/

Long gourd

長いウリ
Meaning
an elongated green vegetable belonging to the cucumber family, used in cooking
Example
She sliced the long gourd thinly for the stir-fry dish.
彼女はその長いウリを薄切りにして、炒め物に使いました。
A1 verb /læf/

laugh

笑う
Meaning
to make sounds and movements expressing happiness or amusement
Example
The joke made everyone laugh.
そのジョークでみんなが笑った。
B2 noun/adjective /ˈlætɪn/

latin

ラテン語
Meaning
the language of ancient Rome; relating to Latin culture or language
Example
Many English words are derived from Latin.
多くの英単語はラテン語から派生しています。
B2 noun /luːp/

Loop

ループ, 輪
Meaning
a shape produced by a curve that bends around and crosses itself
Example
The string formed a neat loop around the package.
糸はパッケージの周りにきれいなループを作りました。
B1 noun /leɪn/

lane

小道
Meaning
a narrow road or path, often in the countryside or for specific traffic
Example
They walked down a quiet country lane.
彼らは静かな田舎道を歩いていました。
A2 adjective /ˈleɪ.zi/

Lazy

怠け者; 働きたくない
Meaning
idle; unwilling to work; sluggish
Example
He was too lazy to clean his room on the weekend.
彼は週末に部屋を掃除するのが面倒だった。
B1 verb /loʊd/

load

積む
Meaning
to put goods or cargo onto a vehicle; to fill something with a heavy quantity
Example
Workers load the truck with heavy boxes.
作業員は重い箱でトラックを積み込みます。
A2 noun /ˈlɜːrnər/

learner

学習者
Meaning
a person who is acquiring knowledge or skill through study or experience
Example
She is a fast learner.
彼女は覚えが早い。
C2 noun /ˈlɪtɪɡənt/

litigant

訴訟当事者
Meaning
a person involved in a lawsuit
Example
The court summoned both litigants for the hearing.
裁判所は両方の訴訟当事者を公聴会に召喚した。
C1 noun /ˈliːvˌteɪ.kɪŋ/

leave-taking

お別れ
Meaning
an act of saying goodbye; farewell
Example
His leave-taking from his friends was emotional.
彼の友達へのお別れは感動的でした。
C1 noun /ˈlaɪm.laɪt/

Limelight

公衆の注目の中心; ライムのシリンダーを加熱して発生する明るい光
Meaning
the focus of public attention; a bright light produced by heating a cylinder of lime
Example
The celebrity enjoyed being in the limelight.
有名人はスポットライトの中で楽しんでいました。
C2 adjective /ˈlæŋɡwɪd/

Languid

無気力な; 怠け者の; 弱い
Meaning
lacking energy or vitality; slow and relaxed; weak or faint
Example
After the long journey, she felt languid and needed to rest.
長い旅の後、彼女は無気力に感じ、休む必要があった。
B2 noun/verb /ˈlɪtər/

litter

ゴミ
Meaning
rubbish or waste left lying in a public place; to make a place untidy by leaving rubbish
Example
The park was full of litter after the festival.
祭りの後、公園はゴミでいっぱいだった。
C2 adjective /ˈlɪɡ.ni.əs/

ligneous

木質の
Meaning
having the texture or appearance of wood; woody
Example
The ligneous stem supported the heavy flowers.
木質の茎が重い花を支えました。
C1 noun /ˌluː.mɪˈnɒs.ɪ.ti/

luminosity

光度
Meaning
The intrinsic brightness of a celestial object; the quality of emitting light.
Example
The luminosity of the star was measured with advanced instruments.
星の光度は高度な機器で測定されました。
C1 adjective /ləˈbɔːr.i.əs/

laborious

骨の折れる
Meaning
requiring considerable effort and time; difficult and hard-working
Example
Writing the long report was a laborious task.
長いレポートを書くことは骨の折れる仕事でした。
C1 verb /ˈliːɡəlaɪz/

legalize

合法化する
Meaning
To make something lawful by official approval.
Example
The government decided to legalize online businesses.
政府はオンラインビジネスを合法化することを決定しました。
B2 adjective /ˈlæstɪŋ/

Lasting

持続的な; 永続的な
Meaning
enduring for a long time; permanent; durable
Example
Their friendship had a lasting impact on both their lives.
彼らの友情は彼らの人生に持続的な影響を与えました。
A1 adjective /ˈlɪtl/

little

小さい
Meaning
Small in size, amount, or degree.
Example
He drank a little water before going to bed.
彼は寝る前に少し水を飲んだ。
C2 noun /ˈlɛvi/

levee

堤防
Meaning
An embankment built to prevent the overflow of a river or to hold back water.
Example
The town built a levee to protect itself from flooding.
その町は洪水から守るために堤防を作った。
B2 noun /ˈlænd.fɪl/

landfill

埋立地
Meaning
a site where waste material is buried under the ground
Example
The city built a new landfill to manage its growing waste problem.
その都市は増え続ける廃棄物問題を解決するために新しい埋立地を作りました。
B1 noun /ˈleɪ.ər/

Layer

層; 層状;
Meaning
a sheet, quantity, or thickness of material, typically one of several, covering a surface or body
Example
The cake has three layers of chocolate.
ケーキには三つのチョコレート層があります。
C2 noun /ˈlænjæp/

lagniappe

追加の贈り物
Meaning
A small gift or bonus given by a seller to a customer.
Example
The shopkeeper offered a piece of candy as a lagniappe.
店主はおまけとしてキャンディを提供しました。
B2 noun /ˌledʒɪsˈleɪʃən/

legislation

立法
Meaning
laws considered collectively, or the act of making laws
Example
The government passed new legislation to protect the environment.
政府は環境保護のために新しい立法を制定しました。
B2 adverb /ˈlaɪk.waɪz/

Likewise

同様に; 同じように; 似たように
Meaning
in the same way; also; similarly
Example
She studied hard for the exam, and her brother did likewise.
彼女は試験のために一生懸命勉強し、彼女の兄も同様にしました。
C2 noun /lɪˈvaɪəθən/

leviathan

巨大な海の怪物
Meaning
a huge sea monster or something very large and powerful.
Example
The ship looked like a leviathan on the horizon.
その船は地平線上で巨大な海の怪物のように見えました。
B1 noun /lɪd/

Lid

ふた
Meaning
a removable or hinged cover for the top of a container
Example
Please put the lid back on the jar.
ジャーの蓋を元に戻してください。
B1 noun /ˈloʊnlinəs/

Loneliness

孤独
Meaning
The state of being alone and feeling sad about it.
Example
She felt a deep sense of loneliness after moving to the new city.
新しい街に引っ越した後、彼女は深い孤独を感じた。
B2 noun ˈlaɪf ɪkˌspek.tən.si

life expectancy

平均寿命
Meaning
The average period that a person may expect to live; the length of time for which something is expected to last or to continue being effective.
Example
Life expectancy depends on healthcare quality.
平均寿命は医療の質に依存します。
C2 noun /luːˈbrɪsɪti/

lubricity

滑りやすさ
Meaning
the quality of being slippery or smooth; sometimes also refers to lewdness
Example
The lubricity of the surface made it difficult to walk on.
表面の滑りやすさにより、歩くのが難しくなった。
C2 verb /ˈlɛvɪteɪt/

levitate

浮遊
Meaning
to rise or float in the air, usually without visible support.
Example
The magician made the table levitate during the show.
魔法使いはショーの間にテーブルを浮かせた。
A2 noun /ˈləʊɡəʊ/

logo

Meaning
a symbol or other small design adopted by an organization to identify its products, uniform, vehicles, etc.
Example
The company's logo was redesigned to reflect its new image.