| a. | 1. | Next in order after the eleventh; coming after eleven others; - the ordinal of twelve. |
| 2. | Constituting, or being one of, twelve equal parts into which anything is divided. | |
| n. | 1. | The quotient of a unit divided by twelve; one of twelve equal parts of one whole. |
| 2. | The next in order after the eleventh. | |
| 3. | (Mus.) An interval comprising an octave and a fifth. |
| Noun | 1. | twelfth - position 12 in a countable series of things |
| Adj. | 1. | twelfth - coming next after the eleventh and just before the thirteenth in position Synonyms: 12th |