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Webster 1913 Edition

Unpin

Un-pin′

,

Verb.

T.

[1st pref.

un-

+

pin

.]

To loose from pins; to remove the pins from; to unfasten;

as, to

unpin

a frock; to

unpin

a frame

.

Webster 1828 Edition

Unpin

UNPIN'

,

Verb.

T.

To loose from pins; to unfasten what is held together by pins; as, to unpin a frock; to unpin the frame of a building.