My guess is that he won't even bring this up at the meeting.
John made a wrong guess as to what Mary's reaction would be to the news.
WordNet 3.0 Sense Numbers: 1
What's your best guess for our arrival time based on our current speed?
The computer program's guesses were more accurate than those of the humans, in calculating future market cycles.
WordNet 3.0 Sense Numbers: 2
Commentary: IDIOM: anybody's_guess
It's anybody's guess who will win the next election.
WordNet 0.0 Sense Numbers: Idiom