Words similar to guess

Example sentences for: guess

How can you use “guess” in a sentence? Here are some example sentences to help you improve your vocabulary:

I guess we've all done that.
Guess which idea wins?
But what he means by what he shows is anybody's guess.
Still, I am nagged by inadequacies in Green's definition of high-five , which suggests that each individual might be simply clapping his hands together, and I am bothered by the ODNW's failure to note the date of entry into the language, saying that the earliest use of the term dates to 1979; I think that Green is right to hint at the fact that the gesture preceded its use in sport: my guess is that slap five arose among black teenagers or, perhaps, musicians as a form of greeting, approval, farewell, and the like and was later carried over into sports (perhaps, as the ODNW suggests, by Derek Smith), where it became high five . It seems unlikely that we shall ever know for sure.
It is worth while trying to guess whence this expression came.