The act of saluting, or paying respect or reverence, by the customary words or actions; the act of greeting, or expressing good will or courtesy; also, that which is uttered or done in saluting or greeting.

a series of movements in Kenpo that designate respect to one you are greeting.

in a letter is a formal greeting to the receiver. It starts with "Dear", includes Ms. Mr or Professional Designation of the receiver, the receiver’s family name and is punctuated with a colon.

an act of honor or courteous recognition; "a musical salute to the composer on his birthday"

(usually plural) an acknowledgment or expression of good will (especially on meeting)

Salutation in computing is a technique for service discovery and service management.