postmarking

Canceling a stamp

Postmarking is the act of stamping mail with an official mark showing the date and place of mailing.

Post offices postmark letters to cancel stamps and verify when items entered the postal system.

The postmark serves as proof of mailing date, which matters for tax deadlines, legal filings, and contest entries: The IRS accepts returns postmarked by April 15.

postal

cancellation

Voiding of plans

sorting · post office · clerk · ink · franking · date stamp · mail processing · dispatch · outgoing · incoming

correspondence

letter

Written symbol or message

recipient · mailing · dispatch · outgoing mail · correspondence · mailbox · letterbox · delivery · zipcode · return address

verification

authentication

Confirming genuine identity

timestamp · validation · legality · compliance · official · deadline · expiry · legal evidence · contest entry · tax filing

philately

collecting

Gathering items over time

album · vintage · antique · cachet

Categories
Opposites
mail processing stage

postmarkingreceiving

Acquiring what's sent

delivering · unsealing · opening · collecting · sorting

official vs. private handling

postmarkingsealing

Making impermeable

addressing · stamping · private · personal · handwriting

official validation

postmarkinghand-delivering

Conveying by personal transport

unmarked · unstamped · unofficial · private

Family

mark, marker, marked, remark, marking, postman, benchmark, remarked, postal

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G