1. a tuft, tress, or ringlet of hair

2. the hair of the head

3. a cohering bunch (as of wool, cotton, or flax) tuft

4. dreadlock sense 2

5. a fastening (as for a door) operated by a key or a combination

6. the mechanism for exploding the charge or cartridge of a firearm

7. an enclosure (as in a canal) with gates at each end used in raising or lowering boats as they pass from level to level

8. air lock

9. a locking or fastening together

10. an intricate mass of objects impeding each other (as in a traffic jam)

11. a hold in wrestling secured on one part of the body broadly a controlling hold
his paper … had a lock on a large part of the state
— John Corry

12. one that is assured of success or favorable outcome

13. to fasten the lock of

14. to make fast with or as if with a lock
lock up the house

15. to fasten in or out or to make secure or inaccessible by or as if by means of locks
locked himself away from the curious world

16. to fix in a particular situation or method of operation
a team firmly locked in last place

17. to make fast, motionless, or inflexible especially by the interlacing or interlocking of parts
lock wheels lock a knee

18. to hold in a close embrace

19. to grapple in combat also to bind closely
administration and students were locked in conflict

20. to invest (capital) without assurance of easy convertibility into money

21. to move or permit to pass (something, such as a ship) by raising or lowering in a lock

22. to become locked

23. to be capable of being locked

24. interlace, interlock

25. to go or pass by means of a lock (as in a canal)

26. to come into conflict

27. to acquire (something, such as a target or signal) automatically using a sensor (such as radar)

28. to fasten (something) with a lock

29. to fasten the door, lid, etc., of (something) with a lock

30. to become fastened with a lock

31. a small bunch of hair or of fiber (as cotton or wool)

32. a fastening (as for a door) in which a bolt is operated (as by a key)

33. the device for exploding the charge or cartridge of a firearm

34. to fasten with or as if with a lock

35. to shut in or out by or as if by means of a lock

36. to make unable to move by linking parts together The puzzle pieces were locked into place.