quintuple
— Verb
– English
~ increase fivefold; "The population of China quintupled"
quip
— Verb
– English
~ make jokes or quips; "The students were gagging during dinner"
quirk
— Verb
– English
~ twist or curve abruptly; "She quirked her head in a peculiar way"
quit
— Verb
– English
~ put an end to a state or an activity; "Quit teasing your little brother"
quit
— Verb
– English
~ give up or retire from a position; "The Secretary of the Navy will leave office next month"; "The chairman resigned over the financial scandal"