1. mingle-mangle a motley assortment of things
  2. jingle-jangle make a sound typical of metallic objects
  3. increasingly advancing in amount or intensity
  4. single file a line of persons or things ranged one behind the other
  5. line single a single resulting from a line drive
  6. single-channel designating sound transmission or recording or reproduction over a single channel
  7. singlestick a stick used instead of a sword for fencing
  8. singsong uttered in a monotonous cadence or rhythm as in chanting
  9. sneakingly in a sneaky manner
  10. single shell a shell for a single oarsman
  11. single-mindedly in a single-minded manner
  12. single-minded determined
  13. single quote a single quotation mark
  14. displeasingly in a displeasing manner
  15. enclosing the act of enclosing something inside something else
  16. single stitch a crochet stitch
  17. single-spacing typing that does not leave lines blank
  18. single entry a simple bookkeeping system
  19. sing along sing with a choir or an orchestra
  20. synclinal sloping downward toward each other to create a trough