noun
plural -ers
[count] a person whose job is to carry messages, packages, etc., from one person or place to another
a business that is used to send messages, packages, etc.
Brit :a person who is employed by a travel company and whose job is to help people who are on holiday
verb
-ers; -ered; -ering
[+ obj] chiefly Brit :to use a courier to send (a message, package, etc.) to a person or place