Think and Think up

Think verb - To have as an opinion.

Think up is a synonym for think in invent topic. In some cases you can use "Think up" instead a verb "Think".

Nearby Word: thinking

Think up verb - To create or think of by clever use of the imagination.

Think is a synonym for think up in invent topic. Sometimes you can use "Think" instead a verb "Think up", if it concerns topics such as imagine, conjure up scenario.