A postcard is a thing - a message card you send in the mail. All "things" are nouns. Postcard is a noun.
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
adverb
what part of speech is work
a metered postcard is a postcard that already has the stamp made into the the postcard. there is no need to put an adhesive stamp on it.
Sashay is a verb. It means to walk in an exaggerated, showy manner, often with hip swaying.
Postcard is a noun.
"Did not" or "didn't" is a contraction of the auxiliary verb "did" and the adverb "not," forming a negative past tense construction in English.
The word speech is a noun.
Adjective
Yes, a proper noun is a type of noun that specifically names a unique person, place, thing, or idea and is typically capitalized. It is part of the broader category of nouns in the classification of parts of speech in grammar.