- (n.) A bicycle or tricycle or other light velocipede.
- (n.) One entire round in a circle or a spire; as, a cycle or set of leaves.
- (n.) An imaginary circle or orbit in the heavens; one of the celestial spheres.
- (n.) An orderly list for a given time; a calendar.
- (n.) An age; a long period of time.
- (v.i.) To ride a bicycle, tricycle or other form of cycle.
- (n.) An interval of time in which a certain succession of events or phenomena is completed, and then returns again and again, uniformly and continually in the same order; a periodical space of time marked by the recurrence of something peculiar; as, the cycle of the seasons or of the year.
- (n.) The circle of subjects connected with the exploits of the hero or heroes of some particular period which have served as a popular theme for poetry, as the legend of Arthur and the knights of the Round Table, and that of Charlemagne and his paladins.
- (v.i.) To pass through a cycle of changes; to recur in cycles.
- (n.) A complete positive and negative wave of an alternating current; one period. The number of cycles (per second) is a measure of the frequency of an alternating current.
- (n.) A series of operations in which heat is imparted to (or taken away from) a working substance which by its expansion gives up a part of its internal energy in the form of mechanical work (or being compressed increases its internal energy) and is again brought back to its original state.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). cycle. Retrieved September 23, 2026, from http://smartdefine.org/cycle/definitions/1994025 |
| Chicago | Webster's. 2011. "cycle" http://smartdefine.org/cycle/definitions/1994025 (accessed September 23, 2026). |
| Harvard | Webster's 2011, cycle, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/cycle/definitions/1994025>. |
| MLA | Webster's. "cycle" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/cycle/definitions/1994025> |