1. Coming next after the eleventh and just before the thirteenth in position
   - 12th, dozenth

1. Position 12 in a countable series of things 
2. One part in twelve equal parts
   - one-twelfth, twelfth part, duodecimal

Derived forms: twelfths

See also: ordinal

Type of: common fraction, rank, simple fraction, vulgar fraction [Brit]

Encyclopedia: Twelfth

• greenbottle fly
• greenbrier
• Greene
• greenery
• greeneye
• greenfield
• greenfinch
• greenfly
• greengage
• greengage plum
• greengrocer
• greengrocery
• greenhood
• greenhorn
• greenhouse
• greenhouse effect
• greenhouse emission
• greenhouse gas
• greenhouse warming
• greenhouse whitefly
• greenie
• greening
• greenish
• greenish blue
• greenish yellow