lock in

phrasal verb
Updated on: 15 Nov 2017

Definition of lock in

1 : to put or keep (someone or something) in a locked place, room, etc.
  • She locked her brother in the bathroom.
  • They locked the jewels in a safe.
  • They threatened to lock him in jail.
2 : to do something that makes one sure to get (something that could change, such as a good price, an interest rate, etc.)
  • If you sign the contract today, you can lock in this low interest rate before it goes any higher.

Word by Word Definitions

lock play
  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

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

  2. : the mechanism for exploding the charge or cartridge of a firearm

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

  1. : to fasten the lock of

  2. : to make fast with or as if with a lock

  3. : to fasten in or out or to make secure or inaccessible by or as if by means of locks



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