The word may be used in a pejorative sense if information for a better estimate is available but ignored.

These data can be used to obtain a better estimate of dimensions.

Sociologists and economists may come up with a better estimate.

For many years, they'd said, and I had not thought to ask them for a better estimate.

He could get a better estimate of the beast now as it came closer.

For an even better estimate, take the average of two or three tanks in each case (city, highway).

Perhaps if you have some specific example in mind, we can come up with a better estimate.

"If we're going to avoid ending up here, I'll need a better estimate than that."

"Longer if you want me to spend time computing a better estimate."

If the estimated activity level exceeds 20%, he will add more participants to get a better estimate of the response rate.