g'day

Etymology
.

Interjection

 * 1)  Hi, hello.
 * 2)  Denotes the end of a radio transmission.
 * 3) * "en"
 * 1)  Denotes the end of a radio transmission.
 * 2) * "en"

- Golf Golf Whiskey Golf, cleared the ILS approach runway one two, contact Sault Tower one one eight decimal eight, g'day.

Usage notes

 * Used interchangeably with and, but more characteristically Australian/New Zealand, and perhaps the most informal of these options. Also used in the constructions G'day, mate (a greeting to a friend or acquaintance) and G'day, stranger (ironically, to a friend not seen in some time).