Dictionary.com
Thesaurus.com
Synonyms

key in

British  

verb

  1. (tr, adverb) to enter (information or instructions) in a computer or other device by means of a keyboard or keypad

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is also key in fiber-optic manufacturing and defense applications.

From The Wall Street Journal • Mar. 31, 2026

The full Moon in April has an important additional role as it is key in setting the dates for Easter and Passover.

From BBC • Mar. 29, 2026

The other key, in Craig’s view, is to actually practice doing it.

From MarketWatch • Mar. 26, 2026

“We knew at some point we’d get that spot where we’re playing our best. I started to key in on their blockers to see who was switching on Mateo.”

From Los Angeles Times • Mar. 21, 2026

Petey’s moped leaned up against the building, key in the ignition.

From "Bone Gap" by Laura Ruby