Out and On

Out adverb - In or into the open air.

On and out are semantically related in departure topic. In some cases you can use "On" instead the word "Out" as an adverb or an adjective, when it comes to topics like away.

On adverb - Toward a point ahead in space or time.

Out and on are semantically related in departure topic. Sometimes you can use "Out" instead the word "On" as an adverb or a preposition or an adjective, if it concerns topics such as away.