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RELATED WORDS

incarcerate, apprehend, detain, jail, commit, hold, remand, confine, imprison, sentence, exclude, possess, utilize, absorb, insure, confirm, ensure, secure, guarantee, enjoy

Nearby words

lochiometra, lochiometritis, lochiorrhea, lochus, loci, lock, lock bay, lock horns, lock in, lock nut, lock on to

Idioms

Origin of lock

1
before 900; Middle English; Old English loc fastening, bar; cognate with Middle Low German lok, Old High German loh, Old Norse lok a cover, lid, Gothic -luk in usluk opening; akin to Old English lūcan to shut
Related formslock·less, adjectiveself-lock·ing, adjectivewell-locked, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for lock up (1 of 3)

lock up


verb (adverb)

noun lockup

adjective

lock-up British and NZ (of premises) without living accommodationa lock-up shop

British Dictionary definitions for lock up (2 of 3)

lock

1
/ (lɒk) /

noun

verb

Derived Formslockable, adjective

Word Origin for lock

Old English loc; related to Old Norse lok

British Dictionary definitions for lock up (3 of 3)

lock

2
/ (lɒk) /

noun

a strand, curl, or cluster of hair
a tuft or wisp of wool, cotton, etc
(plural) mainly literary hair, esp when curly or fine

Word Origin for lock

Old English loc; related to Old Frisian lok, Old Norse lokkr lock of wool
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with lock up (1 of 2)

lock up


1

Close a house or place of work, fastening all the doors and windows, as in The attendant locks up at eleven o'clock every night, or Did you remind Abby to lock up? [Late 1500s]

2

Invest in something not easily converted into cash, as in Most of their assets were locked up in real estate. [Late 1600s]

3

lock someone up. Confine or imprison someone, as in The princes were locked up in the Tower of London. [c. 1300]

Idioms and Phrases with lock up (2 of 2)

lock


In addition to the idioms beginning with lock

  • lock horns
  • lock in
  • lock out
  • lock the barn door after the horse has bolted
  • lock up

also see:

  • under lock and key
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.