Cycle, cycles, or cyclic may refer to:
- Cyclic history, a theory of history
- Cyclical theory, a theory of American political history associated with Arthur Schlesinger, Sr.
- Social cycle, various cycles in social sciences
- Business cycle, the downward and upward movement of gross domestic product (GDP) around its ostensible, long-term growth trend
Music
Musical terminology
- Cycle (music), a set of musical pieces that belong together
- Cyclic form, a technique of construction involving multiple sections or movements
- Interval cycle, a collection of pitch classes generated from a sequence of the same interval class
- Song cycle, individually complete songs designed to be performed in a sequence as a unit
Computing
- Cycles, a render engine for the software Blender
- Instruction cycle, the time period during which a computer processes a machine language instruction
- Reference cycle, where a software object refers directly or indirectly to itself
Other uses in science and technology