1. A cancellation mark stamped on mail by postal officials; indicates the post office and date of mailing

1. Stamp with a postmark to indicate date and time of mailing
   - frank

Derived forms: postmarks, postmarked, postmarking

Type of: mark, marker, marking, stamp

Encyclopedia: Postmark

• slickness
• slide
• slide action
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• slide down
• slide fastener
• slide projector
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• slider
• slideway
• sliding
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• sliding door
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• slight
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• slighting
• slightingly
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• slim