1. Twice a year
   - biyearly

See also: semiannual

• quick-sighted
• quick-tempered
• quick-witted
• quick-wittedness
• quicken
• quickener
• quickening
• quicker
• quickest
• quickie
• quicklime
• quickly
• quickness
• quicksand
• quickset
• quicksilver
• quickstep
• quicky
• quid
• quid pro quo
• quiddity
• quidnunc
• quids in
• quiesce
• quiescence