9-letter words containing ons
- tonsorial — of or relating to a barber or barbering: the tonsorial shop.
- trillions — an exceptionally large but unspecified number
- werelions — Plural form of werelion.
- wisconsin — a state in the N central United States: a part of the Midwest. 56,154 sq. mi. (145,440 sq. km). Capital: Madison. Abbreviation: WI (for use with zip code), Wis., Wisc.
- wronskian — the determinant of order n associated with a set of n functions, in which the first row consists of the functions, the second row consists of the first derivatives of the functions, the third row consists of their second derivatives, and so on.