1. Occurring every second year
   - biennial 
2. Occurring or payable twice each year
   - semiannual, biannual, half-yearly

1. Every two years
   - biennially 
2. Twice a year
   - semiannually

See also: periodic, periodical

• Judas Iscariot
• Judas Maccabaeus
• Judas tree
• judder
• judder bar
• Jude
• Judea
• Judeo-
• Judeo-Christian
• Judeo-Spanish
• judge
• judge advocate
• judge advocate general
• judge's robe
• judgement
• judgement by default
• Judgement Day
• judgement in personam
• judgement in rem
• judgement of dismissal
• judgement on the merits
• judgement on the pleadings
• judger
• Judges
• judgeship