Vocabulary Cards
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C1 verb
babble
おしゃべりする
Meaning
to talk rapidly and continuously in a foolish way
Example
The baby babbles all day long.
C1 noun
Baboon
バブーン
Meaning
a large African and Arabian primate with a dog-like snout and colorful buttocks
Example
The baboon troop gathered around the watering hole in the savanna.
A1 noun
baby
赤ちゃん
Meaning
a very young child, especially one newly or recently born
Example
The baby is sleeping peacefully in the crib.
C2 noun
bacchanal
狂乱のパーティ
Meaning
A noisy party involving drinking and revelry.
Example
The festival turned into a wild bacchanal by midnight.
C2 noun
bacchanalia
酒と楽しみの祭り
Meaning
A Roman festival of Bacchus celebrated with dancing, drinking, and revelry; any occasion of wild and drunken revelry.
Example
The novel describes the party as a bacchanalia of excess and joy.
C2 adjective
bacchanalian
酔っ払いの祭りに関連する
Meaning
Characterized by or involving drunken revelry.
Example
The students threw a bacchanalian party after the exams.
B2 noun
Bachelor
独身男性; 大学の学位を持つ人
Meaning
an unmarried man; a person who holds a first degree from a university
Example
He remained a bachelor all his life and earned a bachelor's degree in engineering.
A1 noun
Back
背中
Meaning
the rear surface of the human body from the shoulders to the hips; the spine
Example
She hurt her back while lifting heavy boxes.
A2 phrasal verb
back up
支援する；バックアップする；後退する
Meaning
to support or help someone; to make a copy of data for safety; to move backward
Example
Please back up your files before updating the system.
C2 verb
backbite
陰口を言う
Meaning
to speak negatively about someone who is not present; to slander behind someone’s back
Example
It is wrong to backbite your colleagues behind their backs.
B2 noun
Backbone
背骨
Meaning
the series of vertebrae extending from the skull to the pelvis; spine
Example
He injured his backbone in the accident.
B2 noun
backdrop
背景
Meaning
a painted cloth or other structure used behind a stage
Example
The backdrop for the play was a beautiful mountain scene.
A2 noun
Background
背景
Meaning
the circumstances or situation that form the setting; a person's education, experience, or social circumstances
Example
She has a strong background in mathematics and computer science.
C1 adjective
backhanded
間接的または皮肉な
Meaning
Indirect or sarcastic, often appearing as praise but actually insulting.
Example
She gave him a backhanded compliment about his work.
B2 noun
Backing
支援
Meaning
help or support; financial or material support
Example
The project received backing from several major investors.
B2 noun
backside
背中
Meaning
the rear part or surface of something; informal term for the buttocks
Example
The kids slid down the hill on their backside.
C2 verb
backslide
後退
Meaning
To relapse into bad habits, undesirable practices, or moral decline.
Example
After months of progress, he began to backslide into old habits.
B1 noun
backup
バックアップ
Meaning
a copy of data stored separately to protect against loss
Example
Make sure to have a backup of your important files.
A2 adverb
Backwards
逆さま; 逆順
Meaning
in the direction that is behind; in reverse order
Example
He counted backwards from ten to one.
B1 noun
backyard
幸せ
Meaning
an area of land behind a house, typically used for recreation or gardening
Example
The children played football in the backyard.
C2 adjective
baconian
ベコニアン
Meaning
Relating to the philosopher Francis Bacon or his method of scientific reasoning.
Example
The researcher followed a Baconian approach to observation and experimentation.
B2 noun
bacteria
バクテリア
Meaning
A member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus.
Example
Specialized bacteria aid in waste decomposition.
B2 noun
bacterium
バクテリア
Meaning
A single microscopic organism belonging to the group of bacteria.
Example
The doctor explained that a single bacterium can multiply rapidly under the right conditions.
A1 adjective
bad
悪い
Meaning
not good; unpleasant, harmful, or of poor quality
Example
The milk smells bad, so don’t drink it.