Read the dictionary definition of guess. All definitions for this word.
1. an estimate based on little or no information
2. a message expressing an opinion based on incomplete evidence
3. expect, believe, or suppose
1. I imagine she earned a lot of money with her new novel
2. I thought to find her in a bad state
3. he didn't think to find her in the kitchen
4. I guess she is angry at me for standing her up
4. guess correctly; solve by guessing
1. He guessed the right number of beans in the jar and won the prize
5. judge tentatively or form an estimate of (quantities or time)
1. I estimate this chicken to weigh three pounds
6. put forward, of a guess, in spite of possible refutation
1. I am guessing that the price of real estate will rise again
2. I cannot pretend to say that you are wrong