treatise
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C1 noun /ˈtriːtɪs/

treatise

Meaning
a formal and systematic written work dealing with a subject in detail
Example
He wrote a treatise on modern economic theory.
C1 noun /ˈtjuːmʌlt/

tumult

Meaning
A loud, confused noise, especially caused by a crowd; commotion or disorder.
Example
The protest created a tumult in the city square.
C1 adjective /traɪt/

trite

Meaning
Overused and lacking originality.
Example
The speech was full of trite phrases.
C1 noun /ˈtrɪb.jə.ter.i/

Tributary

Meaning
a river or stream flowing into a larger river or lake
Example
The tributary joins the main river near the city.
C1 adjective /ˈtʌf.tɪd/

Tufted

Meaning
having a tuft or tufts; furnished with a tuft or clump of threads, hairs, or other material
Example
The tufted sofa looked elegant in the living room.
C1 adjective tɪˈneɪ.ʃəs

tenacious

Meaning
Not readily letting go of, giving up, or separated from an object that one holds, a position, or a principle; persistent.
Example
Her tenacious spirit helped her overcome hardships.
C1 noun /ˈtreɪ.ki.ə/

Trachea

Meaning
the tube that carries air from the throat to the lungs; windpipe
Example
The trachea is protected by cartilage rings that keep it open.
C1 verb /tɔːnt/

taunt

Meaning
to provoke or challenge someone with insulting remarks
Example
The bully tried to taunt him with cruel words.
C1 noun /ˈtæn.ər/

tanner

Meaning
A person whose job is to tan animal hides to make leather.
Example
The tanner worked long hours to produce fine leather.
C1 noun /ˈtoʊ.pæz/

Topaz

Meaning
a precious stone, typically colorless, yellow, or blue, used in jewelry
Example
The queen's crown was adorned with a magnificent blue topaz.
C1 noun /toʊm/

tome

Meaning
a large, heavy book, often scholarly or serious in nature
Example
She spent the afternoon reading an old tome on medieval history.
C1 adjective /ˈtɛnəbl/

tenable

Meaning
able to be defended or maintained against attack or objection
Example
His argument was strong and tenable in court.
C1 verb /trænsˈɡrɛs/

transgress

Meaning
to go beyond the limits of a moral law, command, or boundary; to sin
Example
He apologized after realizing he had transgressed the community's rules.
C1 noun /ˈtræpɪŋz/

trappings

Meaning
the outward signs, features, or objects associated with a role, event, or status
Example
The king appeared with all the trappings of royalty.
C1 noun /tiː ˈstreɪnər/

Tea-strainer

Meaning
a small perforated device used to strain tea leaves from brewed tea
Example
I always use a tea-strainer when pouring tea into cups.
C1 noun /ˈtrɪviə/

trivia

Meaning
Details or information that are considered unimportant or of little value.
Example
The quiz was filled with fun trivia about movies and music.
C1 verb /ˈtæmpər/

tamper

Meaning
To interfere with something in a harmful, unauthorized, or improper way.
Example
The evidence was tampered with before the trial.
C1 noun /ˈtɛmptər/

tempter

Meaning
a person or thing that entices someone into doing something wrong
Example
The tempter whispered false promises into his ear.
C1 noun /ˈtrɪkstər/

trickster

Meaning
A person who cheats or deceives people.
Example
The old man turned out to be a clever trickster who fooled everyone.
C1 noun /ˈtɒpˌsɔɪl/

topsoil

Meaning
the top layer of soil, which is rich in organic matter and nutrients
Example
Farmers rely on healthy topsoil for good crop yields.
C1 noun /ˈtɜː.mɔɪl/

turmoil

Meaning
A state of great disturbance, confusion, or uncertainty.
Example
The political turmoil led to mass protests.
C1 adjective /taɪˈtænɪk/

titanic

Meaning
Of exceptional strength, size, or power.
Example
The company made titanic efforts to expand into new markets.
C1 noun ˈtɑksɪk ɪˈmɪʃənz

toxic emissions

Meaning
Harmful or poisonous substances released into the environment, especially the atmosphere.
Example
Toxic emissions from vehicles pollute the atmosphere.
C1 adjective /ˈtɛmpərəl/

temporal

Meaning
Relating to worldly affairs or to time rather than spiritual matters.
Example
The monk gave up his temporal possessions to live a simple life.
C1 noun /ˈtæpəstri/

tapestry

Meaning
A piece of thick textile fabric with pictures or designs woven into it, often hung on walls.
Example
The museum displayed an ancient tapestry from the 15th century.
C1 adjective /trænsˈluːsənt/

translucent

Meaning
allowing light to pass through, but not clearly enough to see detailed images
Example
She placed the flower in a translucent vase.
C1 adverb /ˌðɛərˈtu/

Thereto

Meaning
to that; in addition to that
Example
The house and the garden attached thereto were sold.
C1 adjective /ˌtræn.senˈdɛn.təl/

transcendental

Meaning
relating to the spiritual or non-physical realm; surpassing ordinary experience
Example
Meditation can lead to transcendental experiences.
C1 noun /təˈlɛpəθi/

telepathy

Meaning
the supposed communication of thoughts or ideas by means other than the known senses
Example
The twins claimed to share telepathy with each other.
C1 noun /traɪˈbjuːnəl/

tribunal

Meaning
a court of justice or body established to settle disputes
Example
The case was heard in an international tribunal.
C1 adjective /ˈtep.ɪd/

Tepid

Meaning
only slightly warm; lukewarm; showing little enthusiasm
Example
The tea was tepid and unappetizing.
C1 verb /ˈtɛðər/

tether

Meaning
To tie an animal with a rope or chain so it cannot move far.
Example
The farmer tethered the goat to a post.
C1 noun /təˈræntjʊlə/

tarantula

Meaning
A large hairy spider found in warm regions.
Example
The tarantula crawled across the desert floor.
C1 noun /trʌsˈtiː/

trustee

Meaning
a person who holds or manages property or assets for the benefit of others
Example
She was appointed as the trustee of the family estate.
C1 verb /ˈteɪpər/

taper

Meaning
To gradually decrease in width, thickness, or intensity.
Example
The road tapers off as it reaches the mountains.
C1 noun /ˈtuːsəm/

twosome

Meaning
A pair of people considered together, often in a romantic or competitive context.
Example
They entered the dance competition as a twosome.
C1 adjective /tænˈdʒɛnʃəl/

tangential

Meaning
relating to or along a tangent; slightly or indirectly related to something
Example
His remarks were tangential to the main topic of discussion.
C1 noun /ˈtɪrəni/

tyranny

Meaning
Cruel and oppressive government or rule by a tyrant.
Example
The people revolted against the tyranny of their ruler.
C1 adjective /tɛmˈpɛstjuəs/

tempestuous

Meaning
Characterized by strong and turbulent emotions or stormy conditions.
Example
Their tempestuous relationship often swung between love and anger.
C1 noun /ˈtoʊɡə/

toga

Meaning
A loose outer garment worn in ancient Rome, typically draped over the shoulders and body.
Example
The senator wore a white toga during the ceremony.
C1 adjective /tjuːˈmʌltʃuəs/

tumultuous

Meaning
Characterized by disorder, noisy excitement, or emotional agitation.
Example
They had a tumultuous relationship full of ups and downs.
C1 noun /ˈtraɪæd/

triad

Meaning
a group of three closely related people or things
Example
The project was managed by a triad of experts.
C1 adjective /ˈtɔːrtʃuəs/

tortuous

Meaning
Full of twists and turns; excessively complex or complicated.
Example
The tortuous mountain road made driving very difficult.
C1 verb /taʊt/

tout

Meaning
to promote, praise, or advertise aggressively
Example
The company touted its new product as a game-changer.
C1 noun /taɪˈreɪd/

tirade

Meaning
a long, angry, or critical speech
Example
The manager launched into a tirade about poor performance.
C1 adjective /trænsˈfɜːrəbəl/

Transferable

Meaning
able to be moved from one place to another; able to be given to someone else
Example
The skills you learn here are transferable to other jobs.
C1 adjective /tɔːt/

taut

Meaning
stretched or pulled tight; tense
Example
The rope was pulled taut between the two poles.
C1 adjective /ˈtɪpsi/

tipsy

Meaning
slightly drunk
Example
She felt tipsy after just one glass of wine.
C1 noun ˌtoʊ.kə.nɪˈzeɪ.ʃən

tokenization

Meaning
The process of breaking text into smaller units like words, phrases, or symbols for analysis.
Example
NLP uses tokenization to break text into smaller units.
C1 noun /tɪf/

tiff

Meaning
a small or petty quarrel or argument
Example
They had a little tiff over what movie to watch.
C1 noun /ˈtæntrəm/

tantrum

Meaning
An uncontrolled outburst of anger and frustration, typically in a young child.
Example
The child threw a tantrum when he didn’t get the toy.
C1 noun/verb /tæk/

tack

Meaning
a small sharp nail; or to change direction in sailing or approach something differently
Example
She used a tack to pin the paper on the wall.
C1 noun /ˈtem.pər.ə.mənt/

Temperament

Meaning
a person's natural disposition or mood; characteristic behavior patterns
Example
She has a calm temperament that helps her handle stress well.
C1 noun /ˌtɛknɪˈkæləti/

technicality

Meaning
A small detail of law, rule, or procedure; a minor point that affects an outcome.
Example
The case was dismissed on a technicality.
C1 noun /ˈtem.pɪst/

Tempest

Meaning
a violent storm with strong winds; a state of great disturbance or tumult
Example
The sailors struggled to navigate through the fierce tempest.
C1 adjective /tɛk ˈdrɪv.ən/

tech-driven

Meaning
Powered or guided by technology; dependent on technological advancement for operation.
Example
The agricultural sector is becoming more tech-driven for higher efficiency.
C1 adjective /ˈtɛn.ju.əs/

tenuous

Meaning
Very weak, thin, or slight; lacking a strong basis.
Example
The evidence against him is quite tenuous.
C1 adjective /ˈtraɪflɪŋ/

Trifling

Meaning
of little importance; trivial; insignificant
Example
Don't worry about such trifling matters.
C1 noun /ˌtæm.bəˈriːn/

Tambourine

Meaning
a small drum with metal discs around the edge that jingle when shaken or hit
Example
She shook the tambourine to the rhythm of the music.
C1 noun /taɪˈkuːn/

tycoon

Meaning
a wealthy, powerful businessperson
Example
The real estate tycoon invested in several skyscrapers.
C1 noun trænˈsɛndəns

transcendence

Meaning
Existence or experience beyond the normal or physical level.
Example
The artist's work was a symbol of transcendence in creativity.
C1 adjective /ˈtʌtʃi/

Touchy

Meaning
easily upset or offended; overly sensitive
Example
He's very touchy about his height.
C1 noun /ˈtriːkəl/

treacle

Meaning
A thick, sweet syrup; excessively sentimental speech or writing.
Example
She poured treacle over the pancakes.
C1 verb /ˈtɒpl/

topple

Meaning
to fall or cause to fall over; to overthrow
Example
The earthquake caused the old building to topple.
C1 noun /teɪnt/

Taint

Meaning
a stain or mark that spoils something; corruption or contamination
Example
The scandal left a permanent taint on his reputation.
C1 adjective /ˈtɛlˌteɪl/

telltale

Meaning
Revealing something that is usually hidden; giving away a secret or clue.
Example
The telltale signs of fatigue were visible on his face.
C1 noun /ˌtɛstɪˈməʊnɪəlz/

testimonials

Meaning
Written or spoken statements of praise or recommendation from clients or customers.
Example
Positive testimonials can enhance a company's reputation.
C1 noun /ˈtrɪp.lət/

triplet

Meaning
One of three children or animals born at the same time to the same mother.
Example
The family was surprised to have triplets instead of twins.
C1 noun /ˈθʌroʊˌbrɛd/

thoroughbred

Meaning
a horse of pure and recognized breed; a person of good breeding or education
Example
The jockey rode a fast thoroughbred in the race.
C1 adjective /ˌθiːəˈlɒdʒɪkl/

theological

Meaning
Relating to the study of theology or religious belief.
Example
He wrote a theological paper on the concept of divine justice.
C1 noun /ˈtɒr.ənt/

Torrent

Meaning
a strong and fast-moving stream of water or other liquid; a sudden, violent, and copious outpouring
Example
The heavy rain created a torrent of water rushing down the mountain.
C1 noun /ˈtem.pɚ.əns/

temperance

Meaning
Moderation in action, thought, or feeling; restraint.
Example
Temperance is essential for a balanced life.
C1 adjective /ˈtɒp.məʊst/

Topmost

Meaning
highest in position or rank
Example
The flag was placed on the topmost branch of the tree.
C1 adverb /ˌðɛərˈʌv/

Thereof

Meaning
of that; from that
Example
The contract and all amendments thereof must be signed.
C1 noun ˈθɜː.məl stres

thermal stress

Meaning
Stress caused by excessive heat that affects plant growth and development.
Example
High thermal stress affects plant growth.
C1 adjective /ˈtæk.taɪl/

tactile

Meaning
Connected with the sense of touch; perceptible by touch or giving a sensation when touched.
Example
The tactile experience of the fabric was soft and smooth.
C1 noun /ˈtɛnər/

tenor

Meaning
the general meaning, drift, or character of something; a male singing voice between baritone and alto
Example
The overall tenor of his speech was hopeful and reassuring.
C1 verb /ˈθiːəraɪz/

theorize

Meaning
To form a theory or set of ideas to explain something.
Example
Scientists often theorize about the origins of the universe.
C1 adjective /ˈtrænzvɜːrs/

transverse

Meaning
situated or lying across something
Example
The transverse road connects two highways.
C1 adverb /ˌðɛrəˈbaʊt/

thereabout

Meaning
Approximately or around that place, amount, or time.
Example
The repairs will cost five hundred dollars or thereabout.
C1 adjective /ˈθrɪfti/

thrifty

Meaning
using money and resources carefully and not wastefully
Example
She is very thrifty and always saves money for the future.
C1 adjective /θiːˈmætɪk/

thematic

Meaning
Relating to or based on a theme.
Example
The book is organized into thematic chapters.
C1 adjective /ˈtæn.tə.laɪ.zɪŋ/

Tantalizing

Meaning
tempting and attractive but out of reach
Example
The tantalizing aroma of fresh bread filled the bakery.
C1 verb /trəˈvɜːrs/

traverse

Meaning
To travel across or through something.
Example
They traversed the desert on camels.
C1 noun /tɪnt/

tint

Meaning
a slight shade or variation of a color
Example
The walls were painted white with a slight blue tint.
C1 adjective /ˈtɛmpərd/

tempered

Meaning
having a specified temper or disposition; strengthened or moderated.
Example
She gave a tempered response to the criticism.
C1 noun /ˈθɪk.ɪt/

Thicket

Meaning
a dense group of bushes or trees; a thick growth of shrubs
Example
The rabbit disappeared into the thicket.
C1 verb /ˈtæn.tə.laɪz/

tantalize

Meaning
To tease or torment someone with the promise of something desirable but unattainable.
Example
The aroma of the bakery tantalized the hungry children.
C1 adjective /ˈtiːmɪŋ/

teeming

Meaning
full of or swarming with things or people
Example
The market was teeming with shoppers.
C1 verb /θræʃ/

thrash

Meaning
to beat someone or something violently; to move wildly or violently
Example
The angry man threatened to thrash his opponent.
C1 noun /tɑːrˈpɔːlɪn/

tarpaulin

Meaning
A large sheet of strong, flexible, water-resistant material used for covering or protecting things.
Example
The workers used a tarpaulin to cover the construction materials from rain.
C1 verb /ˈtɑːrnɪʃ/

tarnish

Meaning
To lose luster, especially as a result of exposure to air or moisture; to damage reputation.
Example
The silver jewelry tarnished quickly when left in the open air.
C1 noun trəˈdʒek.tər.i

trajectory

Meaning
The path followed by a projectile flying or an object moving under the action of given forces.
Example
The satellite followed its intended trajectory.
C1 noun /trɔːf/

trough

Meaning
A long, narrow container from which animals eat or drink; also, a low point between waves or in business cycles.
Example
The cows drank water from the wooden trough.
C1 noun /ˈten.jər/

Tenure

Meaning
the period of time during which someone holds an office or position
Example
During his tenure as CEO, the company expanded globally.
C1 noun /ˈtruː.ənt/

Truant

Meaning
a student who stays away from school without permission; a person who shirks duty
Example
The principal called the parents when their child was caught playing truant.
C1 adjective /ˈtɑːrdi/

tardy

Meaning
Delayed; arriving or happening late.
Example
The student received a warning for being tardy to class.
C1 noun /ˈtres.pæs.ər/

Trespasser

Meaning
a person who enters someone's property without permission
Example
The security guard caught the trespasser climbing over the fence.
C1 adjective ˈtæs.ɪt

tacit

Meaning
Understood or implied without being openly expressed or stated
Example
Their mutual understanding was based on tacit agreement.
C1 noun /ˈtrɪnɪti/

trinity

Meaning
a group of three closely related things; in Christianity, the Father, the Son, and the Holy Spirit
Example
The museum’s exhibit focused on a trinity of themes: memory, identity, and power.
C1 verb/noun /ˈθrɒt.əl/

throttle

Meaning
To choke or strangle; to control the flow of fuel or power in an engine.
Example
The driver throttled the engine to slow down the car.
C1 noun /ˈtæm.ər.ɪnd/

Tamarind

Meaning
a brown tropical fruit with a tangy, sour taste used in cooking and beverages
Example
Tamarind is commonly used in Asian and Middle Eastern cuisines for its sour flavor.
C1 adjective /təˈrɛstriəl/

terrestrial

Meaning
Relating to the Earth or land as opposed to the sea or air; living or growing on land.
Example
Humans are terrestrial beings who live on land.
C1 noun, verb /tɪndʒ/

tinge

Meaning
a slight added color, flavor, or feeling; to add a slight amount of color or quality
Example
Her voice was tinged with sadness.
C1 noun /ˈtaɪ.ɡrəs/

Tigress

Meaning
an adult female tiger
Example
The powerful tigress hunted silently through the jungle.
C1 noun /təˈpɒɡrəfi/

topography

Meaning
the arrangement of the natural and artificial physical features of an area
Example
The topography of the region made construction very challenging.
C1 noun /θiˈɒlədʒi/

theology

Meaning
The study of the nature of God and religious beliefs.
Example
She is pursuing a degree in theology at the university.
C1 noun /ˈtiːdiəm/

tedium

Meaning
the state of being tedious; monotony or boredom
Example
The tedium of long meetings often drains motivation.
C1 adjective /tɜːrs/

terse

Meaning
brief and to the point; sparing in the use of words
Example
His reply was terse and ended the conversation quickly.
C1 adverb /ˌðɛərˈɪn/

Therein

Meaning
in that place; in that respect
Example
The box contains many treasures, and therein lies its value.
C1 noun ˌtraɪ.bjuˈnæl əv ˈdʒʌs.tɪs

tribunal of justice

Meaning
A court of justice or judicial body that settles disputes or tries offenses.
Example
The Tribunal of Justice started the hearings promptly.
C1 noun /ˈtɛstəmənt/

testament

Meaning
a person's will; or strong evidence of something
Example
His success is a testament to his hard work and dedication.
C1 adjective /ˈtɪərfəl/

Tearful

Meaning
expressing or showing sadness and sorrow; inclined to weep
Example
She gave a tearful goodbye to her friends at the airport.
C1 noun /ˈtæn.ə.ri/

tannery

Meaning
A place where animal hides are processed into leather.
Example
The tannery produced high-quality leather for export.
C1 noun /ˈtrɪŋkɪt/

trinket

Meaning
a small ornament or piece of jewelry that is not expensive
Example
She bought a little trinket from the beach market as a souvenir.
C1 noun /træns/

trance

Meaning
a half-conscious state like dreaming, often with loss of awareness of surroundings
Example
She stared out of the window as if in a trance.
C1 noun /ˈtraɪ.fəl/

Trifle

Meaning
something of little importance or value; a small amount
Example
Don't worry about such a trifle; it's not worth your time.
C1 noun ˈtær.ɪf

tariff

Meaning
A tax or duty to be paid on a particular class of imports or exports.
Example
The government imposed high tariffs on luxury goods.
C1 noun /twɪndʒ/

twinge

Meaning
a sudden, sharp pain or an emotional pang
Example
He felt a twinge of guilt after lying to his friend.
C1 noun /ˈtæbloʊ/

tableau

Meaning
a striking or artistic scene or arrangement of people or objects, often presented on stage or in art
Example
The actors froze in a tableau that captured the final moment of the play.
C1 verb /ˈtɪŋkər/

tinker

Meaning
to make small adjustments or repairs to something, often experimentally or imperfectly
Example
He likes to tinker with old radios in his garage.