postmark - definition and synonyms

noun [countable] 

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/ˈpəʊs(t)ˌmɑː(r)k/
singularpostmark
pluralpostmarks

derived word

postmark

 

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verb [transitive]
present tense
I/you/we/they
he/she/itpostmarks
present participlepostmarking
past tensepostmarked
past participlepostmarked