think

To ponder, to go over in one's head.

“Idly, the detective thought what his next move should be.”

To communicate to oneself in one's mind, to try to find a solution to a problem.

“I thought for three hours about the problem and still couldn’t find the solution.”

To conceive of something or someone (usually followed by of; infrequently, by on).

“I tend to think of her as rather ugly.”

To be of opinion (that); to consider, judge, regard, or look upon (something) as.

“At the time I thought his adamant refusal to give in right.”

“I hope you won’t think me stupid if I ask you what that means.”

To guess; to reckon.

“I think she’ll pass the examination.”

To plan; to be considering; to be of a mind (to do something).

To presume; to venture.

obsolete except in methinksTo seem, to appear.

Expect, believe, or suppose

“I imagine she earned a lot of money with her new novel”

“I thought to find her in a bad state”

“he didn't think to find her in the kitchen”

Use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments

“I've been thinking all day and getting nowhere”

Recall knowledge from memory; have a recollection

“I can't remember saying any such thing”

“I can't think what her last name was”

“can you remember her phone number?”

Imagine or visualize

“Just think — you could be rich one day!”

“Think what a scene it must have been!”

Focus one's attention on a certain state

“Think big”

“think thin”

Have in mind as a purpose

“I mean no harm”

“I only meant to help you”

“She didn't think to harm me”

chiefly ukAn act of thinking; consideration (of something).

“I'll have a think about that and let you know.”

An instance of deliberate thinking

“I need to give it a good think”