Broadcast is a compound word.
It is not a compound word. Although MESS and AGE are English nouns/verbs, they cannot combine together. It is not possible.
The word "postman" is a person who works for the postal service. The postal service delivers letters that people have posted with due postage paid. Therefore the verb is the verb to "post" as in "post a letter".
Post Master
It is a Post Office Box. Instead of having something sent to an address of a place, you can organise a post office box through your post office and the post will be sent there. You can then collect it. It is a way of keep an actual address private.
A compound word is a word which is made up of two words. The word post can be connnected with man to make postman.
Flag pole is a compound word that means a post on which a flag is hung.
Post Office, Post Meridiem
As postage is formed by two complete words, post age, so is a compound word.
line
lamp-post -------- Lamp-shade
lamppost goalpost gatepost outpost fencepost signpost
Flagpole - Flag and pole.
No It's not a compound word
E-mail Compound words for mail: airmail blackmail mailbag mailbomb mailbox mailman
Yes, becaus it is a thing. And a noun is a person, place, or thing.
No, important is not a compound word.