- (n.) The interval of three tones and a semitone, embracing five diatonic degrees of the scale; the dominant of any key.
- (a.) Consisting of one of five equal divisions of a thing.
- (n.) The quotient of a unit divided by five; one of five equal parts; a fifth part.
- (a.) Next in order after the fourth; -- the ordinal of five.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). fifth. Retrieved September 23, 2026, from http://smartdefine.org/fifth/definitions/2007892 |
| Chicago | Webster's. 2011. "fifth" http://smartdefine.org/fifth/definitions/2007892 (accessed September 23, 2026). |
| Harvard | Webster's 2011, fifth, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/fifth/definitions/2007892>. |
| MLA | Webster's. "fifth" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/fifth/definitions/2007892> |