The difference between Undo and Untie

When used as verbs, undo means to reverse the effects of an action, whereas untie means to loosen, as something interlaced or knotted.


Undo is also noun with the meaning: an operation that reverses a previous action.

check bellow for the other definitions of Undo and Untie

  1. Undo as a verb:

    To reverse the effects of an action.

    Examples:

    "Fortunately, we can undo most of the damage to the system by the war."

  2. Undo as a verb:

    To unfasten.

    Examples:

    "Could you undo my buckle for me?"

  3. Undo as a verb (figuratively):

    To impoverish or ruin, as in reputation; to cause the downfall of.

  1. Undo as a noun (computing):

    An operation that reverses a previous action.

    Examples:

    "How many undos does this program support?"

  1. Undo as an adjective:

  1. Untie as a verb (transitive):

    To loosen, as something interlaced or knotted; to disengage the parts of.

    Examples:

    "to untie a knot"

  2. Untie as a verb (transitive):

    To free from fastening or from restraint; to let loose; to unbind.

  3. Untie as a verb:

    To resolve; to unfold; to clear.

  4. Untie as a verb (intransitive):

    To become untied or loosed.