Thought up and Work up

Work up and thought up are semantically related. in create topic. In some cases you can use "Work up" instead a verb "Thought up", when it comes to topics like bring about.

Work up verb - To produce or bring about especially by long or repeated effort.

Thought up and work up are semantically related. Sometimes you can replace term "Thought up" with "Work up", this phrasal verbs are similar.