Misspelling of prevalence.

(US) Prevention of a loss of profit (instances of theft, fraud, etc.) done by retail stores. / (US) The department or a person who is employed to carry out loss prevention.

(politics) In parliamentary procedure, a call to end debate on a pending proposal and bring it to an immediate vote.

plural of previous question

Work done by the coastguard to prevent smuggling.

plural of preventive service

plural of prevacuole

(biology) An endosome that develops into a vacuole

(team sports) Any defense intended to prevent rapid scoring by the offense, at the expense of allowing relatively easy, slower scoring.

before, prior to.