- quercus chrysolepis
- quercus prinus
- quercus sessiliflora
- quick as lightning
- quick as a flash
- quick buck
- quick fire
- quick on the draw
- quick time
- quick witted
- quick_freeze
- quick_eared
- quick_witted person
- quick_sighted
- quickening
- quicksilver
- quicky
- quiddity
- quiescence
- quintal
- quintuple
- quire (of loose sheets of paper)
- quirk
- quirk bead
- quirk molding
- quirkiness
- quirt
- quiscent
- quislingism
- quit
- quitclaim
- quitclaim deed
- quite a ship
- quite some time
- quittance
- quite the done thing
- question time
- questioning
- questionnaire
- queue
- queued up
- quezon city
- quibbler
- quercus garryana
- quercus ilicifolia
- quercus lobata
- quick
- quick ejaculation (in sexual intercourse)
- quick march
- quick temper