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mailer

1 ENTRIES FOUND:
mailer /ˈmeɪlɚ/ noun
plural mailers
mailer
/ˈmeɪlɚ/
noun
plural mailers
Britannica Dictionary definition of MAILER
[count] chiefly US
: a person or organization that mails something
: a container used for mailing something
: something (such as an advertisement) that is sent by mail