估计 (gū jì): 見積もる；評価する；計算する；(口) 推測する；と思う（…と）；見積もる；評価する；概算する；推測する；と思う（…と）；仮定する（口語）

I estimate that he will be late today.

It is estimated that five hundred people will attend this meeting.

How long do you estimate this project will take?

I estimate that this piece of clothing costs at least one thousand yuan.

I estimate that this project will take three months to complete.

Can you estimate roughly how much these fruits cost?

I reckon he won't come today, so let's not wait.

According to estimates, the losses from this earthquake reached one billion yuan.

He estimated wrongly; the actual number of people was much higher than he thought.