omicron /ō-mīˈkron, ōˈmi- or omˈi-/

1. The fifteenth letter of the Greek alphabet, short o (Ο, ο)
2. As a numeral οˈ =70, ˌο = 70000

• umbrella'd
• umbrellaed
• umbrella fir
• umbrella firs
• umbrella group
• umbrella groups
• umbrella organization
• umbrella organizations
• umbrella pine
• umbrella plant
• umbrella plants
• umbrellas
• umbrella stand
• umbrella stands
• umbrella tree
• unbeatable
• unbeaten
• unbeautiful
• unbeavered
• unbecoming
• unbecomingly
• unbecomingness
• unbecomingnesses
• unbecomings
• unbed