Extra and Substitute

Extra

Extra noun - An interchangeable part or piece of equipment that is kept on hand for replacement of an original.

Usage example: that portable player runs through batteries incredibly fast, so I always keep plenty of extras on hand

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Substitute and extra are semantically related. In some cases you can use "Substitute" instead the word "Extra" as an adjective or a noun.

Substitute adjective - Taking the place of one that came before.

Usage example: had to find substitute transportation during the bus strike

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Extra and substitute are semantically related. Sometimes you can use "Extra" instead the word "Substitute" as an adjective or a noun.

notable	notable extra	notable substitute
special	special extra	special substitute
best	best extra	best substitute
looking	looking extra	looking substitute
Other adjectives: regular, poor, small, big, bad, black, innocent, new, former, temporary, occasional, available, made.

Initially this makes sense: Peggy's only a substitute teacher, and she sometimes needed extra money or had free time to kill.

Source: Flanderization / Western Animation
The substitute players are depicted as nasty bad guys in the anime; in the manga they're just regular guys, if selfish because they're only playing for extra credit.

Source: Jerk Jock
He does extra research in his spare time to better educate his students (Francine's Pilfered Paper) He has a sister named Rodentia Ratburn who filled in as a substitute teacher, though treated the class like Kindergarteners.

Source: Western Animation / Arthur

Cite this Source

Substitute and Extra. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/extra/substitute

Extra & Substitute. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/extra/substitute>.

Substitute or Extra. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/extra/substitute.

Google Ngram Viewer shows how "extra" and "substitute" have occurred on timeline