- (physics) angular velocity
- (mathematics, set theory) The first (countably) infinite ordinal number, its corresponding cardinal number ℵ0 or the set of natural numbers (the latter of which are often defined to equal the former).
ω! • (o!)
ω΄ • (o΄)
- 800 in Greek numerals
- ͵ω (͵o, “800,000”) (a Greek numeral)