1. acronym of קהל וחזן, used in liturgical texts to mark a passage that that both the congregation and the leader of the service say (Judaism)

2. abbreviation of קַל וָחֹמֶר (kal vachómer): an argument a fortiori

3. abbreviation of קוֹרוֹת חַיִּים (korót chayím): CV, résumé