verb

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

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

2. 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.”

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

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

Synonyms: guess

verb

1. To seem, to appear.

noun

1. Form created in the mind, rather than the forms perceived through the five senses; an instance of thinking.

   “The greatest weapon against stress is our ability to choose one thought over another.”

2. The operation by which such forms arise or are manipulated; the process of thinking; the agency by which thinking is accomplished.

   “Without freedom of thought there can be no such thing as wisdom, and no such thing as public liberty without freedom of speech.”

3. A way of thinking (associated with a group, nation or region).

   “Traditional eastern thought differs markedly from that of the west.”