Mailer definitions

mā'lər
One that uses the mails.

Large commercial mailers.

noun
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One who addresses, stamps, or otherwise prepares mail.
noun
38
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A person who addresses and mails letters, packages, etc.
noun
37
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A container, such as a cardboard tube, used to hold material to be mailed.

A cardboard book mailer.

noun
35
1
An envelope or container in which something is to be mailed.
noun
34
1
An advertising leaflet included with a letter.
noun
32
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An advertising leaflet for mailing out.
noun
31
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1923-2007; U.S. writer.
proper name
28
1
(1) An email program. See email program.
0
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One who, or that which, mails, especially a computer program that sends electronic mail.
noun
0
0
A packet or container designed for postal use.

The cassette came in a brown paper mailer.

noun
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