7-letter words containing t, a, s, i
- ustashi — (formerly) a terrorist organization of right-wing Yugoslav exiles dedicated to the overthrow of Communism in their homeland
- vacuist — a person who believes in the existence of vacuums between molecules and atoms of matter or between bodies of the universe
- vagitus — a new-born baby's first cry
- vainest — excessively proud of or concerned about one's own appearance, qualities, achievements, etc.; conceited: a vain dandy.
- vanitas — a type of still-life painting that flourished in the Netherlands from about 1620 to 1650, conveying a religious message and characterized by objects symbolic of mortality and the meaninglessness of worldly pleasures.
- varsity — any first-string team, especially in sports, that represents a school, college, university, or the like: He is on the varsity in tennis and in debating.
- vastity — immensity; vastness.
- veritas — truth.
- vistaed — possessing or forming a vista or vistas.
- vistula — a river in Poland, flowing N from the Carpathian Mountains past Warsaw into the Baltic near Danzig. About 650 miles (1050 km) long.
- waiatas — Plural form of waiata.
- waisted — having a waist of a specified kind (usually used in combination): long-waisted; high-waisted.
- waister — (nautical) A seaman stationed in the waist of a warship.
- waiters — Plural form of waiter.
- wapitis — Plural form of wapiti.
- wariest — watchful; being on one's guard against danger.
- warmist — Also called global warmist. a person who accepts global warming as a reality (a term used by people who reject the concept).
- washita — Ouachita.
- wasting — not used or in use: waste energy; waste talents.
- watkins — a male given name.
- waxiest — Superlative form of waxy.
- whatsis — a thing or object whose name one does not know or cannot recall.
- whatsit — whatsis.
- wraiths — Plural form of wraith.
- yahwist — a writer of the earliest major source of the Hexateuch, in which God is characteristically referred to as Yahweh rather than Elohim.
- yautias — Plural form of yautia.
- zaniest — ludicrously or whimsically comical; clownish.