1. (used informally) very small
   - bitty [N. Amer], bittie, teensy, teentsy, teeny, wee, weeny, teensy-weensy, teeny-weeny, itty-bitty, itsy-bitsy, titchy [Brit]

See also: little, small

• ossiculum
• ossiferous
• ossification
• ossified
• ossifrage
• ossify
• osso buco
• ossuary
• Ostariophysi
• osteal
• Osteichthyes
• osteitis
• osteitis deformans
• ostend
• ostensible
• ostensibly
• ostensive
• ostensive definition
• ostensively
• ostensorium
• ostentate
• ostentation
• ostentatious
• ostentatiously
• ostentatiousness