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lock Synonyms

Another word for lock

Looking for synonyms for lock? Sourced from our comprehensive thesaurus, here is a list of similar words and another word for lock, organized by relevance and context.
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• noun (Context 1)

A mechanical or electronic fastening device that is released by a physical object, by supplying secret information, or by a combination of both.

Usage Example

"She turned the heavy brass key in the padlock and slowly pushed the wooden door open."

Strongest
padlock
Strong
bolt
fastener
catch

• verb (Context 2)

To fasten or secure something (such as a door, window, or container) with a mechanical or electronic locking device.

Usage Example

"Please remember to secure the front door and arm the security system before you leave."

Strongest
secure
bolt
Strong
fasten
seal

• noun (Context 3)

A piece, curl, or small section of hair that hangs together.

Usage Example

"A stray tress of dark hair fell across his forehead as he bent over the document."

Strongest
tress
curl
ringlet
Strong
strand

• verb (Context 4)

To become firmly fixed, jammed, or incapable of moving.

Usage Example

"The gears on my older bicycle tend to jam if I try to shift them too rapidly on a steep hill."

Strongest
jam
stick
Strong
freeze
seize

• verb (Context 5)

To interlock, clasp, or entangle firmly together.

Usage Example

"The peaceful protesters locked arms to form an unbreakable human chain across the entrance."

Strongest
clasp
link
Strong
intertwine
join

• noun (Context 6)

A section of a canal or river that is closed off by gates, used to raise or lower boats between different water levels.

Usage Example

"The narrowboat slowly rose as water flooded into the sluice from the upstream gates."

Weak
sluice

Opposites of lock

Looking for antonyms? The opposite of lock varies depending on the context. Here are a few common opposites:

unlock
unclasp
release
open
separate
free
detach
move
See all opposites of lock

Cite this Entry


Wordmom. (2026). Synonyms for Lock. In Wordmom Thesaurus. Retrieved Oct 15, 2026, from https://wordmom.com/synonyms/lock
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