(originally) A carbon copy. / (Internet) A copy of an email sent to a person other than the main recipient, to keep them informed.

From Chinese culture, a given name to be used later in life in place of one's given name, as a symbol of adulthood and respect.

A loyalty card.

plural of courtesy name

(often humorous) A flush (cleansing of the toilet) in the middle of a sitting, intended to reduce an unpleasant smell.

To go beyond what courtesy requires; to insist somewhat too much upon the precedence of others.

A usually symbolic formal meeting in which a diplomat or representative of a state pays a visit out of courtesy to a head of state or state office holder.

plural of courtesy copy

(nautical) a flag (of the country being visited) flown by a visiting vessel as a token of respect, as well as the vessel's own national or house flag.

plural of courtesy flag