backup

Noun
  1. An accumulation caused by clogging or a stoppage (synset 113458354)
    "a traffic backup on the main street"; "he discovered a backup in the toilet"
    is a type of: accretion, accumulation - an increase by natural growth or addition
  2. Someone who takes the place of another (as when things get dangerous or difficult) (synset 110667676)
    "the star had a stand-in for dangerous scenes"; "we need extra employees for summer fill-ins"
    is a type of: compeer, equal, match, peer - a person who is of equal standing with another in a group
    subtypes:
    same as: backup man, fill-in, relief, reliever, stand-in, substitute
  3. A musical part (vocal or instrumental) that supports or provides background for other musical parts (synset 107045239)
    is a type of: part, voice - the melody carried by a particular voice or instrument in polyphonic music
    subtypes:
    • descant, discant - a decorative musical accompaniment (often improvised) added above a basic melody
    • vamp - an improvised musical accompaniment
    same as: accompaniment, musical accompaniment, support
  4. (computer science) a copy of a file or directory on a separate storage device (synset 102774845)
    "he made a backup in case the original was accidentally damaged or erased"
    referred to in: computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
    is a type of: duplicate, duplication - a copy that corresponds to an original exactly
    same as: computer backup
  5. The act of providing approval and support (synset 101216376)
    "his vigorous backing of the conservatives got him in trouble with progressives"
    is a type of: approval, approving, blessing - the formal act of approving
    same as: backing, championship, patronage

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