| a. | 1. | Next in order after the seventh. | |||
| 2. | Consisting of one of eight equal divisions of a thing.
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| n. | 1. | The quotient of a unit divided by eight; one of eight equal parts; an eighth part. | |||
| 2. | (Mus.) The interval of an octave. | ||||
| Noun | 1. | eighth - position eight in a countable series of things |
| 2. | eighth - an eighth part Synonyms: one-eighth | |
| Adj. | 1. | eighth - coming next after the seventh and just before the ninth in position Synonyms: 8th |