1. (n.) The mark, or stamp, of a post office on a letter, giving the place and date of mailing or of arrival.

2. (v. t.) To mark with a post-office stamp; as, to postmark a letter or parcel.

abandonment abbreviation abolishment abolition abridgment abrogation annulment arabesque basketry basketwork blot blotting blotting out blue-penciling bowdlerization cancel canceling cancelling cassation censoring censorship cessation counterbalancing countermand counterorder cross-hatching crossing-out defeasance deletion discontinuance editing effacement elimination erasure expunction expurgation filigree frank fret fretwork frustration grace period grate grating grid gridiron grille grillwork hachure hatching interlacement intertexture intertwinement invalidation lace lacery lacework lacing lattice latticework mesh meshes meshwork moratorium net netting network neutralization nullification obliteration offsetting omission plexure plexus postage postage stamp postmark raddle recall recantation renege repeal rescinding rescindment rescission reticle reticulation reticule reticulum retraction reversal revocation revoke revokement riddle screen screening scrubbing setting aside sieve stamp stoppage striking suppression suspension termination texture thwarting tissue tracery trellis trelliswork undoing vacation vacatur vitiation voidance voiding waiver waiving washing out wattle weave weaving web webbing webwork weft wicker wickerwork wiping out withdrawal write-off