replacement

noun

re·​place·​ment ri-ˈplās-mənt 

1

: the action or process of replacing : the state of being replaced

2

: one that replaces another especially in a job or function

Synonyms of replacement

• substitute
• backup

Examples of replacement in a Sentence

We need a replacement for our old vacuum cleaner.

Where can we get replacement parts for the tractor?

Recent Examples on the Web

But much more work is needed to understand what this region of the genome does, and Claude is no replacement for biologists, the scientists say. — Adam Kovac, Scientific American, 14 Oct. 2026

This is notable because The Wall Street Journal reported in September that private-equity giant Apollo was in talks to buy the hips-and-knee replacement business for $20 billion. — Kevin Stankiewicz, CNBC, 13 Oct. 2026

According to a veteran of the New York museum world, speaking on background, Weiss’s replacement of Suda could have at least the appearance of opportunism. — Hilarie M. Sheets, ARTnews.com, 13 Oct. 2026

Proposition 5 would eliminate the replacement question from the recall ballot. — Darrielle Fair, CBS News, 13 Oct. 2026

Word History

First Known Use

1743, in the meaning defined at sense 1

Phrases Containing replacement

• estrogen replacement therapy
• hormone replacement therapy
• replacement set
• replacement therapy

Rhymes for replacement

• abasement
• debasement
• defacement
• displacement
• effacement
• emplacement
• encasement
• misplacement
• outplacement
• basement
• placement

Kids Definition

replacement

noun

re·​place·​ment ri-ˈplā-smənt 

1

: the act of replacing : the state of being replaced

2

: one that replaces another : substitute

Legal Definition

replacement

noun

re·​place·​ment

1

a

: the act of replacing : the state of being replaced

b

: an insurer's option under a policy to replace or repair damaged property rather than pay the insured for the loss

2

: something that replaces

specifically : a new fixed asset or portion of an asset that takes the place of one discarded (as because of deterioration)