1. Occurring or payable twice each year
   - semiannual, biannual, biyearly

1. Every half year, every six months

See also: periodic, periodical

• plowman
• plowshare
• plowwright
• ploy
• pluck
• pluck at
• plucked
• pluckily
• pluckiness
• pluckless
• plucky
• plug
• plug away
• plug fuse
• plug hat
• plug in
• plug into
• plug-ugly
• plugboard
• plugged
• plugger
• plughole
• plum
• plum duff
• plum pudding