(transitive) To ponder, to go over in one's mind.
- Idly, the detective thought what his next move should be.
- Had we but world enough and time / This coyness, lady, were no crime. / We would sit down, and think which way / To walk, and pass our long love's day.
(transitive) To have (some statement) in one's mind; to say to oneself mentally.
- "I should phone my mother," I thought.
(intransitive) 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.
(intransitive) To conceive of something or someone [with of; or (rare) with on]
- I tend to think of her as rather ugly.
(transitive) To be of 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.
- I think she is pretty, contrary to most people.
- Boxing is thought to be a dangerous sport.
- It was thought that I was the mole in the company.
- 1865, Henry David Thoreau, Cape Cod, Chapter IX. "The Sea and the Desert", page 182.
[…] one man showed me a young oak which he had transplanted from behind the town, thinking it an apple-tree.
(transitive) 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.
(informal, used to show obviousness or agreement) Ellipsis of think so.
- These plants are dead.
Uh, you think?