He second-guessed his strategy after the coach pointed out a simpler approach.

She kept second-guessing her choice even after everyone reassured her.

Children often play guessing games during long car rides to pass the time.

Exactly why the committee rejected the proposal is anyone's guess.

Making decisions based on guess-work instead of careful analysis often backfires.

If I had to hazard a guess, I'd say she'll accept the offer.

As scientists, we often rely on educated guesses when experimental data are incomplete.

If you're not sure, just take a guess and see what happens.

The captain ordered the deckhands to prepare the guess warp to tow the disabled trawler into the harbor.

The physicists debated whether the strange guess warps observed in the data were artifacts or genuine phenomena.