lubricating system vs force feed

lubricating system and force feed both are nouns.

Word	Noun	Adjective	Verb	Adverb
lubricating system	Yes	No	No	No
force feed	Yes	No	No	No

As nouns, lubricating system and force feed are synonyms defined as:

lubricating system and force feed: mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings

Other synonyms of lubricating system include force-feed lubricating system, pressure-feed lubricating system, pressure feed.

lubricating system (noun)	force feed (noun)
mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings	mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings