entertain vs think about

entertain and think about both are verbs.

Word	Noun	Adjective	Verb	Adverb
entertain	No	No	Yes	No
think about	No	No	Yes	No

As verbs, entertain and think about are synonyms defined as:

Other synonyms of entertain include flirt with, think of, toy with.

entertain (verb)	think about (verb)
take into consideration, have in view	take into consideration, have in view
maintain (a theory, thoughts, or feelings)	have on one's mind, think about actively
provide entertainment for