think

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

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

To have (some statement) in one's mind; to say to oneself mentally.

• "I should phone my mother," I thought.

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 [with of; or with on]

• I tend to think of her as rather ugly.

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

• I don't think it worth complaining about the leak in the roof, is it?
• I hope you won’t think me stupid if I ask you what that means.
• She thought it pointless starting before four o'clock.

To guess; to reckon; to believe while admittedly being uncertain.

• We should/would have thought she could've washed her hands before, at least.

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

To presume; to venture.

Ellipsis of think so.

• These plants are dead. Uh, you think?

To bring something to a particular condition using the mind.

• Try to think the pain away.

An act of thinking; consideration (of something).

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

To seem, to appear.