Rad and Stand-up

Rad noun - A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.

Stand-up and rad are semantically related. In some cases you can use "Stand-up" instead an adjective "Rad".

Stand-up adjective - Following the accepted rules of moral conduct.

Rad and stand-up are semantically related. Sometimes you can use "Rad" instead an adjective phrase "Stand-up".