English Words: T
27,828 words · Page 219 of 557
An unstable acid, H₂S₂O₃, formally derived from sulfuric acid by the substitution of a sulfur atom in the place of an oxygen one; it is known only in solution or as its salts and esters, the thiosulfates.
A colourless oily liquid, C₄H₃S.CH₃, analogous to toluene, which it resembles; methyl thiophene.
Diamidoditolyl sulphide, (C₇H₆ּ·NH₂)₂S, a substance used in the production of some azo dyes.
Describing an organism that oxidizes sulfur compounds as a major part of its metabolism
Any of a class of heterocycles based on 2-thioxo-1H-pyrimidin-4-one; the parent compound interferes with the synthesis of thyroxine and is used in the treatment of hyperthyroidism
Any of a class of compounds based on NH₂-CS-NH₂, formally derived from urea by replacing the oxygen atom with sulfur, used in photography as a fixing agent, in inorganic synthesis, and in medicine as an antithyroid drug.
A compound formally derived from uridine by replacing an oxygen atom with one of sulfur, but especially 4-thiouridine which is used as an affinity label
The tricyclic heterocycle (sulfur analogue of xanthene) consisting of two benzene rings fused to that of thiopyran
Any of three possible metameric substances that are dimethyl derivatives of thiophene, like the xylenes from benzene.
A structure used to convey unreal or unfulfilled events in the past, containing an if clause (with a verb in the past perfect) and a main clause (with would + the bare perfect infinitive of a verb).
Used other than figuratively or idiomatically: see third, country. A country other than two specific countries, especially a country not party to an agreement between two other countries.
A young person who has lived for a significant period outside their birth (or passport) country due to parental work-related migration.
The caste of commoners in France prior to 1789, as distinct from the nobility and clergy.
The right of an airline of one country to land in a different country and deplane passengers coming from the airline’s own country.
The Andaman Islands, Nicobar Islands, Sumatra; from Burma in the north to either the Indonesian Archipelago, or Australia in the south.
One of the Three Laws of Robotics, requiring a robot to protect its own existence, as long as this does not conflict with the First Law (which forbids a robot to harm a human) or the Second Law (which requires robots to obey humans).
Someone not directly involved in a transaction; an entity beyond the seller (first party) and customer (second party).
The words, word-forms, and grammatical structures, taken collectively, that are normally used of people or things other than the speaker or the audience.
Spelling & Dictionary Insight
The English alphabetical index for the letter T contains 27,828 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 557 pages, and you are currently viewing page 219. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.
On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.
For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "T" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.