back up vs aid

back up is not a noun while aid is a noun.

back up and aid both are verbs.

Word	Noun	Adjective	Verb	Adverb
back up	No	No	Yes	No
aid	Yes	No	Yes	No

As verbs, aid is a hyponym of back up; that is, aid is a word with a more specific, narrower meaning than back up:

back up: give moral or psychological support, aid, or courage to
aid: give help or assistance; be of service

Other hyponyms of back up include sponsor, buy at, frequent, patronise, patronize, shop, shop at, sponsor, assist, help, advance, boost, encourage, further, promote, root, undergird, back, endorse, indorse, second.

back up (noun)	aid (noun)
	the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
	the work of providing treatment for or attending to someone or something
	a person or thing that is a resource that helps make something easier or possible to do
	gift of money or other material help to support a person or cause

back up (verb)	aid (verb)
establish as valid or genuine	improve the condition of
become or cause to become obstructed	give help or assistance; be of service
make a copy of (a computer file) especially for storage in another place as a security copy
move backwards from a certain position
give moral or psychological support, aid, or courage to

Difference between back up and aid

Words related to "aid"

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