9-letter words containing a, u, v, o
- voluntary — done, made, brought about, undertaken, etc., of one's own accord or by free choice: a voluntary contribution.
- von braun — Braun, Wernher von.
- voracious — craving or consuming large quantities of food: a voracious appetite.
- vouchsafe — to grant or give, as by favor, graciousness, or condescension: to vouchsafe a reply to a question.