hap, happen, occur, come about, take place, go on, pass off, fall out, pass - come to pass; "What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important"

cycle - recur in repeating sequences

hark back, recall, come back, return - go back to something earlier; "This harks back to a previous remark of his"

apply, employ, use, utilise, utilize - put into service; make work or employ (something) for a particular purpose or for its inherent or natural purpose; "use your head!"; "we only use Spanish at home"; "I can't make use of this tool"; "Apply a magnetic field here"; "This thinking was applied to many projects"; "How do you utilize this tool?"; "I apply this rule to get good results"; "use the plastic bags to store the food"; "He doesn't know how to use a computer"