Definition of undo

Reference

un·do

(

n-d

) KEY

VERB:
un·did (-d

) KEY , un·done (-d

) KEY , un·do·ing (-d

ng) KEY , un·does (-d

) KEY
VERB:
tr.

To reverse or erase; annul: impossible to undo the suffering caused by the war.
To untie, disassemble, or loosen: undo a shoelace.
To open (a parcel, for example); unwrap.
1. To cause the ruin or downfall of; destroy.
2. To throw into confusion; unsettle.
Obsolete To solve or interpret; unravel.

VERB:
intr.

To come open or unfastened.

OTHER FORMS:
un·doer(Noun)

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