1. single out select from a group
  2. single quote a single quotation mark
  3. singlestick a stick used instead of a sword for fencing
  4. single tax a system of taxation in which a tax is levied on a single commodity (usually land)
  5. singleton the playing card that is the only card in a suit held in a bridge hand as initially dealt
  6. single stitch a crochet stitch
  7. singlet a collarless men's undergarment for the upper part of the body
  8. swingletree a crossbar that is attached to the traces of a draft horse and to the vehicle or implement that the horse is pulling
  9. singultus (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion
  10. single entry a simple bookkeeping system
  11. sing along sing with a choir or an orchestra
  12. singalong informal group singing of popular songs
  13. jungle cock male jungle fowl
  14. single file a line of persons or things ranged one behind the other
  15. single shell a shell for a single oarsman
  16. shingle oak small deciduous tree of eastern and central United States having leaves that shine like laurel; wood is used in western states for shingles
  17. shingle tree East Indian timber tree with hard durable wood used especially for tea boxes
  18. single-foot a rapid gait of a horse in which each foot strikes the ground separately
  19. single bed a bed for one occupant
  20. single crochet a crochet stitch