Rad and Tip-top

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

Tip-top and rad are semantically related in good topic. In some cases you can use "Tip-top" instead an adjective "Rad", when it comes to topics like pleasant.

Tip-top adjective - Of the very best kind.

Rad and tip-top are semantically related in good topic. Sometimes you can use "Rad" instead an adjective phrase "Tip-top", if it concerns topics such as pleasant.