nouns
an interval during which a recurring sequence of events occurs
"the never-ending cycle of the seasons"
a series of poems or songs on the same theme
"Schubert's song cycles"
is a type of (narrower)
similar things placed in order or happening one after another
"they were investigating a series of bank robberies"
a periodically repeated sequence of events
"a cycle of reprisal and retaliation"
is a type of (narrower)
an event that repeats
"the events today were a repeat of yesterday's"
the unit of frequency; one hertz has a periodic interval of one second
a single complete execution of a periodically repeated phenomenon
"a year constitutes a cycle of the seasons"
a wheeled vehicle that has two wheels and is moved by foot pedals