Function
Function noun - The action for which a person or thing is specially fitted or used or for which a thing exists.
Usage example: that machine's function is to sort bolts by size
Use is a synonym for function in purpose topic. In some cases you can use "Use" instead the word "Function" as a noun or a verb, when it comes to topics like capacity.
Use
Use noun - What something is used for.
Usage example: ballet is beautiful but what use is it?
Mutual synonyms
How words are described
| full | full function | full use |
| particular | particular function | particular use |
| similar | similar function | similar use |
| normal | normal function | normal use |
| Other adjectives: usual, regular, original, proper, single, obvious, actual, real, little, main, practical, new, continued, less, military, primary, intended, different. | ||
Common collocations
Both words in one sentence
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The scale of this difference also varies - for example, Crusaders and Marines are nearly identical in function and use, while Templars and Jaegers have entirely different roles and abilities.
Source: Video Game / Ground Control -
If the dialogue goes badly, Jensen can activate the pheromone release function and use a personality type-specific mode of dialogue to get what he wants from the NPC, anyway.
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Aladavan quickly identifies the function and use of one of George's pistols.
Source: Literature / Cerberon
Cite this Source
Use and Function. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/function/use
Function & Use. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/function/use>.
Use or Function. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/function/use.
Google Ngram Viewer shows how "function" and "use" have occurred on timeline