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back vs back up

back up vs back

back is a noun but back up is not a noun.

back is an adjective but back up is not an adjective.

back and back up both are verbs.

back is an adverb but back up is not an adverb.

Word NounAdjectiveVerbAdverb
back Yes Yes Yes Yes
back up No No Yes No
As verbs, back and back up are synonyms defined as:
  • back and back up: establish as valid or genuine
As verbs, back up is a hypernym of back; that is, back up is a word with a broader meaning than back:
  • back: give support or one's approval to
  • back up: give moral or psychological support, aid, or courage to
Other hypernyms of back include support.
back (noun) back up (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 (adjective) back up (adjective)
related to or located at the back
of an earlier date
located at or near the back of an animal
back (verb) back up (verb)
establish as valid or genuine establish as valid or genuine
strengthen by providing with a back or backing become or cause to become obstructed
shift to a counterclockwise direction make a copy of (a computer file) especially for storage in another place as a security copy
place a bet on move backwards from a certain position
travel backward give moral or psychological support, aid, or courage to
cause to travel backward
support financial backing for
be behind; approve of
give support or one's approval to
be in back of
back (adverb) back up (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 and back up

Words related to "back"

Words related to "back up"

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