1. think back recapture the past; indulge in memories
  2. hang back to lag or linger behind
  3. hunchback an abnormal backward curve to the vertebral column
  4. thinkable capable of being conceived or imagined or considered
  5. ceding back the act of ceding back
  6. wingback (American football) the position of the offensive back who lines up behind or outside the end
  7. shrink back pull away from a source of disgust or fear
  8. paying back a reciprocal group action
  9. think about have on one's mind, think about actively
  10. think piece an article in a newspaper or magazine or journal that represents opinions and ideas and discussion rather than bare facts
  11. think tank a company that does research for hire and issues reports on the implications
  12. knock back cost a certain amount
  13. take aback surprise greatly; knock someone's socks off
  14. disk pack (computer science) a portable pack of magnetic disks used in a disk storage device
  15. pinchbeck an alloy of copper and zinc that is used in cheap jewelry to imitate gold
  16. take back regain possession of something
  17. touchback (American football) a play in which the opposing team has kicked the football into your end zone
  18. think up devise or invent
  19. thinking endowed with the capacity to reason
  20. bring back bring back to the point of departure

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