replacement

What fills vacancies

Replacement is something or someone that takes the place of another: We need a replacement for the broken window, She's looking for a replacement while she's on leave.

The word also names the act of replacing: The replacement of old pipes took three days.

A replacement part substitutes for one that's worn or damaged.

In military contexts, replacements are new personnel filling vacancies left by casualties or transfers.

substitute

stand-in

Temporary human placeholder

equivalent · backup · spare · stopgap · fill-in · temp · understudy · locum · pinch-hitter · relief

succession

heir

One who receives legacy

dynasty · throne · inheritance · primogeniture · ascension · crown · monarchy · coronation · abdication · regent

prosthesis

implant

Device placed inside tissue

hip · knee · dental · cochlear · pacemaker · titanium · biocompatible · prosthetic · socket · stump

upgrade

improvement

Positive change in quality

update · overhaul · retrofit · renewal · refurbishment · trade-in · phase-out · obsolescence · deprecation · migration

Categories
Opposites
temporal sequence/succession

replacementpredecessor

One who came first

forerunner · precursor · antecedent · original · incumbent

authenticity/originality

replacementoriginal

First or inventive

authentic · genuine article · primary · main · first edition

continuity vs. change

replacementretention

Continued holding or possession

preservation · continuation · maintenance · keeping · permanence

Phrases
Family

replacements

Familiarity
Top 10,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G