1. double bed a bed wide enough to accommodate two sleepers
  2. double bond a covalent bond in which two pairs of electrons are shared between two atoms
  3. double bind an unresolvable dilemma
  4. double reed a pair of joined reeds that vibrate together to produce the sound in some woodwinds
  5. double-dyed without qualification; used informally as intensifiers
  6. double bar notation marking the end of principal parts of a musical composition; two adjacent bar lines
  7. double-bedded having a double bed
  8. doubled twice as great or many
  9. deep-lobed having deep bilateral lobes
  10. double-edged capable of being interpreted in two usually contradictory ways
  11. double bogey to shoot two strokes over par
  12. double bass largest and lowest member of the violin family
  13. double-bogey (golf) a score of two strokes over par for a hole
  14. double back retrace one's course
  15. double birdie shoot two strokes under par
  16. double-humped having two humps
  17. double-bass pitched an octave below normal bass instrumental or vocal range
  18. doublet a man's close-fitting jacket, worn during the Renaissance
  19. double up bend over or curl up, usually with laughter or pain
  20. double dye dye twice