back up vs back

back vs back up

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

back up is not an adjective while back is an adjective.

back up and back both are verbs.

back up is not an adverb while back is an adverb.

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

As verbs, back up and back are synonyms defined as:

back up and back: establish as valid or genuine

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

back up: give moral or psychological support, aid, or courage to
back: give support or one's approval to

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

back up (noun)	back (noun)
	(American football) the position of a player on a football team who is stationed behind the line of scrimmage
	the side that goes last or is not normally seen
	a support that you can lean against while sitting
	the part of a garment that covers the back of your body
	the protective covering on the front, back, and spine of a book
	the posterior part of a human (or animal) body from the neck to the end of the spine
	the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
	the part of something that is furthest from the normal viewer
	(football) a person who plays in the backfield

back up (adjective)	back (adjective)
	related to or located at the back
	of an earlier date
	located at or near the back of an animal

back up (verb)	back (verb)
establish as valid or genuine	establish as valid or genuine
become or cause to become obstructed	strengthen by providing with a back or backing
make a copy of (a computer file) especially for storage in another place as a security copy	shift to a counterclockwise direction
move backwards from a certain position	place a bet on
give moral or psychological support, aid, or courage to	travel backward
	cause to travel backward
	support financial backing for
	be behind; approve of
	give support or one's approval to
	be in back of

back up (adverb)	back (adverb)
	at or to or toward the back or rear
	in or to or toward a past time
	in repayment or retaliation
	in or to or toward a former location
	in or to or toward an original condition
	in reply

Difference between back up and back

Words related to "back"

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