different between backup vs invalidate

English

Alternative forms

• back-up

Etymology

back +? up

Pronunciation

• IPA^(key): /?bæk??p/

Noun

backup (plural backups)

1. A reserve or substitute.

   If the goalkeeper is injured, we have a backup.

2. (computing) A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged.

   After the power failure, we had to restore the database from backup.

3. An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement of the material, or an accumulation of material that causes an overflow due to the flow being greater than the maximum possible flow.

   The accident caused a mile-long backup on the highway.

   The blockage caused a backup in the plumbing.

4. (law enforcement) reinforcements

   He's got a gun! You'd better send for backup.

Synonyms

• (reserve): reserve, stand-in, spare, substitute
• (computing: copy of a file or record):
• (accumulation of material caused by an obstruction of flow): tailback, line (of cars)

Descendants

Translations

Adjective

backup (not comparable)

1. Standby, reserve or extra.

   I am only a backup player.

2. (computing) That is intended as a backup.

   Make a backup copy of that file.

3. Supporting, reinforcing; (music) of or related to accompaniment

Usage notes

Back-up is an alternative spelling of backup. Both spellings are used as either a noun or an adjective. The verb back up is always spelled as two words and never with a hyphen.

Synonyms

• (reserve): extra, reserve, spare, standby
• (supporting): backing

Translations

Verb

backup (third-person singular simple present backups, present participle backupping, simple past and past participle backupped)

1. Misspelling of back up.

Anagrams

• upback

Italian

Etymology

Borrowed from English backup.

Pronunciation

• IPA^(key): /be?kap/, /?b?.kap/

Noun

backup m (invariable)

1. (computing) backup

Portuguese

Alternative forms

• becape

Etymology

Borrowed from English backup.

Noun

backup m (plural backups)

1. (computing) backup (copy of file or record)

English

Etymology

From in- +? Latin valere (“to be strong”); literally, “to make not strong”.

Pronunciation

• (UK) IPA^(key): /??n?væl.?.de?t/

Verb

invalidate (third-person singular simple present invalidates, present participle invalidating, simple past and past participle invalidated)

1. To make invalid. Especially applied to contract law.

   The circuit court judge's ruling was invalidated by a superior judge.

Synonyms

• vitiate

Antonyms

• validate

Translations

Italian

Verb

invalidate

1. second-person plural present indicative of invalidare
2. second-person plural imperative of invalidare
3. feminine plural of invalidato