Alphabetical word directory

English words starting with T

Showing words 841960 of 3,025. Choose a word to read its meaning, etymology and origin.

then-record

adj

Being or having been a record at a previous, specified time.

[ˌðen ˈrek.ɚd]

then-secretary

n

A person who held the position of secretary at a previous time, often used to specify a particular individual in a past context.

[ˌðen ˈsek.rə.ter.i]

then-unknown

adj

Not known or recognized at that time in the past.

[ˌðen-ʌnˈnoʊn]

then-vice

[adjective]

Relating to or characteristic of a former vice or deputy position.

[]

then-wife

n

A woman to whom one was married at a specific past time being discussed; a former wife.

[ðen waɪf]

thence

adv

From that place or source.

[ðens]

thenceforth

adv

From that time, place, or point onward.

[ˌðensˈfɔːrθ]

theocentric

adj

Having God as the central focus of attention or interest; viewing everything in relation to God.

[ˌθiːoʊˈsentrɪk]

theocracy

n

a system of government in which priests rule in the name of God or a god.

[θiˈɑːkrəsi]

theocrat

n

A person who advocates for or rules under a system of government in which religious authorities control the state, or God is recognized as the supreme civil ruler.

[ˈθiːəkræt]

theocratic

adj

Relating to or denoting a system of government in which priests rule in the name of God or a god.

[ˌθiːəˈkrætɪk]

theodicy

n

the part of theology concerned with defending the goodness and omnipotence of god in the face of the existence of evil and suffering in the world.

[θiˈɑːdɪsi]

theodolite

n

A precision optical instrument for measuring horizontal and vertical angles, used in surveying and meteorology.

[θiːˈɑːdəlaɪt]

theologian

n

a person who studies or is an expert in theology.

[ˌθiːəˈloʊdʒən]

theological

adj

Relating to the study of the nature of God and religious belief.

[ˌθiːəˈlɑːdʒɪkəl]

theologically

adv

in a way that relates to theology or the study of God and religious belief

[ˌθiːəˈlɑːdʒɪkli]

theology

n

The study of the nature of God and religious belief.

[θiˈɑːlədʒi]

theophylline

n

a bitter crystalline alkaloid found in tea leaves, used as a bronchodilator in the treatment of asthma and other respiratory conditions.

[ˌθiːoʊˈfɪlɪn]

theorem

n

A statement or idea that can be proved to be true by reasoning.

[ˈθiːərəm]

theoretic

adj

Relating to or based on theory, rather than practical experience or application.

[ˌθiːəˈrɛtɪk]

theoretical

adj

Relating to or based on theory rather than practical experience or application.

[ˌθiːəˈrɛtɪkəl]

theoretically

adv

According to a scientific theory or a logical principle, rather than from practical experience.

[ˌθiːəˈrɛtɪkli]

theoretician

n

a person who develops or studies the theoretical parts of a subject.

[ˌθiːərəˈtɪʃn]

theorist

n

a person who forms or studies theories, especially in a particular field of knowledge.

[ˈθiːərɪst]

theorization

n

The act or process of forming a theory or theories about something.

[ˌθiːərəˈzeɪʃn]

theorize

v

to form a theory or theories about something, especially in the absence of definite proof.

[ˈθiːəraɪz]

theorized

v

formed a theory or set of theories about something.

[ˈθiːəraɪzd]

theorizing

v

forming a theory or set of theories about something.

[ˈθiːəraɪzɪŋ]

theory

n

A formal set of ideas intended to explain why something happens or exists

[ˈθiːəri]

theory-based

adj

Founded on or derived from a particular theory or set of ideas.

[ˈθɪri beɪst]

theory-driven

adj

Guided by or based on a set of ideas or principles intended to explain something.

[ˈθiːəriˌdrɪvn]

therapeutic

adj

relating to the treatment of disease or injury

[ˌθerəˈpjuːtɪk]

therapeutical

adj

Relating to the treatment or cure of disease or medical conditions.

[ˌθerəˈpjuːtɪkəl]

therapeutically

adv

In a way that relates to the treatment or cure of a disease or medical condition.

[ˌθerəˈpjuːtɪkli]

therapeutics

n

the branch of medicine concerned with the treatment of disease and the action of remedial agents.

[ˌθerəˈpjuːtɪks]

therapist

n

a person skilled in a particular type of therapy, especially one who treats people with mental or emotional problems by talking to them.

[ˈθerəpɪst]

therapy

n

The treatment of a physical problem or an illness.

[ˈθerəpi]

there

adv

in, at, or to that place or position

[ðer]

thereabouts

adv

near that place, time, number, or amount.

[ˌðerəˈbaʊts]

thereafter

adv

after that time or event; from that time onward.

[ˌðerˈæftər]

thereby

adv

By that means; as a result of that.

[ˌðerˈbaɪ]

therefor

adv

For that or this purpose; for it.

[ðerˈfɔːr]

therefore

adv

for that reason; as a result

[ˈðerfɔːr]

therefrom

adv

From that place, thing, or source.

[ðerˈfrʌm]

therein

adv

In that place, document, or thing.

[ˌðerˈɪn]

thereof

adv

Of the thing just mentioned; from that cause or origin.

[ðerˈʌv]

thereon

adv

on or onto the thing that has been mentioned

[ˌðerˈɑːn]

thereto

adv

to that, that, or it.

[ˌðerˈtuː]

theretofore

adv

up to that time; before that event or time.

[ˌðertəˈfɔːr]

thereupon

adv

Immediately or shortly after that event or action.

[ˌðerəˈpɑːn]

therewith

adv

Immediately following or as a result of that; with that.

[ˌðerˈwɪθ]

thermal

adj

relating to or caused by heat

[ˈθɜːrməl]

thermally

adv

In a way that relates to heat or temperature.

[ˈθɜːrməli]

thermals

n

Rising currents of warm air, used by birds and gliders to gain height.

[ˈθɜːrməlz]

thermistor

n

a type of resistor whose electrical resistance changes significantly with temperature.

[θərˈmɪstər]

thermocline

n

A layer in a body of water where the temperature changes rapidly with depth.

[ˈθɜːrməklaɪn]

thermocouple

n

A device for measuring temperature, consisting of two wires of different metals joined at both ends. One junction is placed where the temperature is to be measured, and a voltage generated by the temperature difference between the two junctions is measured.

[ˈθɜːrmoʊˌkʌpəl]

thermodynamic

adj

relating to the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy).

[ˌθɜːrmoʊdaɪˈnæmɪk]

thermodynamics

[noun]

the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy) and the conversion of one into another.

[ˌθɜːr.moʊ.daɪˈnæm.ɪks]

thermoelectric

adj

Relating to or involving the direct conversion of heat into electricity.

[ˌθɜːr.moʊ.ɪˈlek.trɪk]

thermographic

adj

Relating to or using a process of producing an image using infrared radiation to show the distribution of temperature on an object or area.

[ˌθɝː.moʊˈɡræf.ɪk]

thermography

n

A technique for producing images that show the distribution of heat over an area or object.

[θɜːrˈmɑːɡrəfi]

thermoluminescence

n

The emission of light from a material when it is heated, caused by the release of trapped electrons from defects in its crystal structure.

[ˌθɜːrmoʊˌluːmɪˈnesəns]

thermomechanical

adj

Relating to or involving both thermal and mechanical properties or effects.

[ˌθɜːrmoʊməˈkænɪkəl]

thermometer

n

an instrument for measuring and indicating temperature, typically using a sealed glass tube containing a liquid (such as mercury or alcohol) that expands and rises in the tube as the temperature increases.

[θɚˈmɑː.mə.t̬ɚ]

thermonuclear

adj

Relating to or using nuclear reactions that occur only at very high temperatures, especially those involving the fusion of light nuclei.

[ˌθɜːrmoʊˈnuːkliər]

thermophilic

adj

(of an organism, especially a bacterium) growing best at high temperatures, typically between 45°C and 80°C.

[ˌθɜːrməˈfɪlɪk]

thermoplastic

adj

(of a substance) becoming soft when heated and hard when cooled, and able to be repeatedly shaped in this way.

[ˌθɜːrmoʊˈplæstɪk]

thermoregulation

n

The process by which an organism or system maintains its internal body temperature within a certain range, despite changes in the environment.

[ˌθɜːrmoʊˌreɡjuˈleɪʃən]

thermos

n

A container, typically a bottle or flask, that keeps liquids hot or cold by means of a double wall enclosing a vacuum.

[ˈθɜːrməs]

thermostat

n

A device that automatically controls temperature by switching a heating or cooling system on and off.

[ˈθɝː.mə.stæt]

theropod

n

A member of a major group of carnivorous, bipedal dinosaurs including allosaurus and tyrannosaurus.

[ˈθɪrəpɑːd]

thesaurus

n

a book that lists words in groups of synonyms and related concepts.

[θəˈsɔːrəs]

these

pronoun, plural

used to refer to specific people or things that are near the speaker or have already been mentioned.

[ðiːz]

thesis

n

A long piece of writing on a particular subject, especially one that is done for a university degree.

[ˈθiːsɪs]

thespian

adj

of or relating to drama; dramatic

[ˈθesp.i.ən]

theta

n

The eighth letter of the Greek alphabet (Θ, θ)

[ˈθeɪtə]

they

pron

Used to refer to two or more people or things previously mentioned or easily identified.

[ðeɪ]

thiamin

n

a vitamin of the b complex, found in unrefined cereals, beans, and liver, a deficiency of which causes beriberi.

[ˈθaɪ.ə.mɪn]

thiamine

n

a vitamin of the b complex, found in unrefined cereals, beans, and liver, a deficiency of which causes beriberi.

[ˈθaɪ.ə.miːn]

thick

adj

having a large distance between two opposite surfaces; not thin

[θɪk]

thick-cut

adj

(of food, especially bacon or slices of fruit) cut into relatively thick pieces.

[ˈθɪk kʌt]

thick-necked

adj

having a thick or strong neck

[ˌθɪk ˈnekt]

thick-skinned

adj

not easily upset or offended by criticism or insults; insensitive.

[ˌθɪk ˈskɪnd]

thick-soled

adj

having a sole that is thick or made of thick material.

[ˌθɪk ˈsoʊld]

thick-walled

adj

having walls that are thick in dimension or substance

[ˌθɪk ˈwɑːld]

thicken

v

to become thicker or to make something thicker

[ˈθɪkən]

thickened

adj

made or become thick or thicker in consistency

[ˈθɪkənd]

thickener

n

a substance added to a liquid to make it thicker or more viscous.

[ˈθɪkənər]

thickening

n

the process of becoming thicker or making something thicker

[ˈθɪkənɪŋ]

thicket

n

A dense group of bushes or small trees

[ˈθɪkɪt]

thickly

adv

In a way that forms a thick layer or has a large distance between opposite surfaces

[ˈθɪkli]

thickness

n

the distance between the opposite surfaces of something; the quality of being thick rather than thin

[ˈθɪknəs]

thickset

adj

(of a person) having a broad, solid, and often strong body shape

[ˈθɪkˌset]

thief

n

A person who steals something from another person or place, especially secretly and without using force.

[θiːf]

thievery

n

the act or practice of stealing; theft.

[ˈθiːvəri]

thieving

adj

Engaged in or characterized by stealing.

[ˈθiːvɪŋ]

thigh

n

the part of the human leg between the hip and the knee.

[θaɪ]

thigh-deep

adj

(of water, mud, snow, etc.) reaching up to the level of a person's thighs

[ˈθaɪ diːp]

thigh-high

adj

reaching up to or just above the thighs

[ˌθaɪ ˈhaɪ]

thigh-length

adj

(of a garment) reaching down to the top of the thighs.

[ˈθaɪ leŋθ]

thighbone

n

the large, thick bone in the upper part of the leg between the hip and the knee; the femur.

[ˈθaɪboʊn]

thimble

n

a small metal or plastic cap worn on the end of the finger to protect it when pushing a needle through cloth while sewing.

[ˈθɪmbl]

thimbleful

n

A very small quantity of a liquid, especially an alcoholic drink.

[ˈθɪmblfʊl]

thimerosal

n

an organomercury compound formerly used as a preservative in some vaccines and other medical products.

[θaɪˈmɛrəˌsɔːl]

thin

adj

having a small distance between opposite surfaces; not thick

[θɪn]

thin-crust

adj

(of pizza or a similar food) having a thin, crisp layer of baked dough as a base.

[ˌθɪn ˈkrʌst]

thin-faced

adj

Having a face that appears narrow or lacking in flesh

[ˌθɪn ˈfeɪst]

thin-film

adj

Relating to or being a very thin layer of a substance deposited on a surface, especially in the context of electronics, optics, or coatings.

[ˌθɪn ˈfɪlm]

thin-lipped

adj

having thin lips

[ˌθɪn ˈlɪpt]

thin-skinned

adj

easily upset by criticism or insults; sensitive.

[ˌθɪn ˈskɪnd]

thin-sliced

adj

Cut into very thin, flat pieces.

[ˌθɪn ˈslaɪst]

thin-walled

adj

Having walls that are thin in thickness.

[ˌθɪn ˈwɑːld]

thine

pron

an archaic or dialect form of 'yours', used before a vowel or 'h'.

[ðaɪn]

thing

n

An object, item, or entity that is not specifically named or is difficult to define precisely.

[θɪŋ]

thingamajig

n

a word used to refer to or replace the name of a person or thing that one cannot recall or does not know.

[ˈθɪŋəmədʒɪɡ]

thingy

n

A word used to refer to or describe an object, item, or gadget whose name one does not know, cannot remember, or does not need to specify.

[ˈθɪŋi]

think

v

To have an opinion, belief, or idea about something.

[θɪŋk]

thinkable

adj

Able to be thought of or imagined; conceivable.

[ˈθɪŋkəbl]

thinker

n

a person who thinks deeply and seriously, especially about important subjects.

[ˈθɪŋkər]
English Words Starting with T – Page 8 | OpenEtymology