to use instead of something else

a thing or person that takes the place of another

(linguistics) Denoting replacement. / (mineralogy) Of or relating to replacement of one mineral by another, or a rock which exhibits such replacement.

Misspelling of replaceable.

The ideology in favour of the Great Replacement.

present participle of replace

Liquid nutrition having nutritional qualities comparable to mother's milk that is given to young animals when mother's milk is not available.

plural of car replacer

A device on American railways for replacing derailed wheels on the track.

(US, military) A unit containing reserves or replacements for large front-line formations such as field armies.