rhythm in WordNet English dictionary

1. the basic rhythmic unit in a piece of music
   "the piece has a fast rhythm"; "the conductor set the beat"
   rhythm  beat  musical rhythm 
   
2. natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her cycle)
   rhythm method of birth control  rhythm method  rhythm  calendar method of birth control  calendar method 
   
3. an interval during which a recurring sequence of events occurs
   "the never-ending cycle of the seasons"
   cycle  rhythm  round 
   
4. recurring at regular intervals
   rhythm  regular recurrence 
   
5. the arrangement of spoken words alternating stressed and unstressed elements
   "the rhythm of Frost's poetry"
   rhythm  speech rhythm