73

Translingual

Etymology

(telecommunications): From entry 73 in the Phillips Code, originally a list from 1 to 92 of numeric codes used to abbreviate common phrases used on telegraph lines.

Symbol

73 (previous 72, next 74)

1. The cardinal number seventy-three.

Symbol

73

1. (telecommunications) regards, best regards (a valediction among ham radio enthusiasts).

Usage notes

• 73s is occasionally used, but is etymologically incorrect, as 73 is already plural.