interlock

1 of 2

verb

in·​ter·​lock ˌin-tər-ˈläk 

interlocked; interlocking; interlocks

intransitive verb

: to become locked together or interconnected

transitive verb

1

: to lock together : unite

2

: to connect so that the motion or operation of any part is constrained by another

interlock

2 of 2

noun

in·​ter·​lock ˈin-tər-ˌläk 

1

: the quality, state, sense, or an instance of being interlocked

2

: an arrangement in which the operation of one part or mechanism automatically brings about or prevents the operation of another

a safety interlock

3

a

: a stretchable fabric made on a circular knitting machine and consisting of two ribbed fabrics joined by interlocking

b

: a garment made of interlock

Examples of interlock in a Sentence

Verb

She interlocked her fingers with his.

Recent Examples on the Web

Verb

The home pinstripes have become more common in home spring training contests in recent years, compared to the same blue top with the interlocking NY. —Ryan Morik, FOXNews.com, 22 Apr. 2026

Normally, this turns the C ring counterclockwise (like the opposite turning of interlocking gears), which propels the swimming cell forward. —Quanta Magazine, 20 Apr. 2026

Noun

In these structures, the semiconductor and insulator interlock more strongly instead of remaining loosely attached. —Neetika Walter, Interesting Engineering, 20 Apr. 2026

Equally important is mandating ignition interlock devices for all offenders, not just repeat offenders, to help address flaws that allow individuals to operate vehicles even after prior infractions. —Sean M. Cleary, Sun Sentinel, 31 Mar. 2026

Word History

First Known Use

Verb

1632, in the meaning defined at intransitive sense

Noun

1874, in the meaning defined at sense 1

Rhymes for interlock

• aftershock
• antiknock
• arawak
• hollyhock
• isopach
• manioc
• shuttlecock
• tomahawk
• weathercock
• alcock
• beanstalk
• bedrock

Kids Definition

interlock

verb

in·​ter·​lock

ˌint-ər-ˈläk

: to lock together : interlace firmly

a series of rings interlocking to form a chain

Legal Definition

interlock

intransitive verb

in·​ter·​lock ˌin-tər-ˈläk 

: to be or become mutually connected

also : to be consistent in regard to major elements

confessions that interlock