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

• landed estate
• landed gentry
• lander
• landfall
• landfill
• landform
• landgrave
• landholder
• landholding
• landing
• landing approach
• landing craft
• landing deck
• landing field
• landing flap
• landing gear
• landing net
• landing party
• landing place
• landing skid
• landing stage
• landing strip
• landlady
• landler
• landless