She guestimated the total cost of the renovation before the contractor provided a quote.

His guestimations about the project's duration kept changing as new information arrived.

We were guestimating the budget during the meeting when the director asked for precise numbers.

The guestimators at the meeting wildly disagreed on the project's timeline.

Her guestimate for the project's completion was three months, though she admitted it was only a rough guess.

Can you guestimate how many people will attend the workshop next week?

Her guestimation of the project's completion time was off by only a day.

The guestimator guessed the attendance would be around two hundred, and his estimate turned out surprisingly accurate.

The committee ignored the guestimates and asked for detailed financial reports.