In psychology, a first impression is the event when one person first encounters another person and forms a mental image of that person.

A little over three weeks of baseball do not give one a lot to hang an opinion on, of course, but impressions form quickly, nonetheless.

In the courtroom the impression was forming that Gilbert might indeed have experienced a mental deterioration.

He stayed an hour, and whatever bad impression had formed in B----'s mind faded long before the hour ended.

Multiple impressions printed from the same matrix form an edition.

Colposcopic impression, the estimate of disease severity based on the visual inspection, forms part of the diagnosis.

His impressions of those hours formed a series of dawns and twilights, with stretches of occasional darkness when he dozed.

But the impression is lasting and forms the basis for learning and looking stuff up in books and we look at videos on Youtube and so on.

This impression then forms the mould.

Even as she took data, formed impressions, listed names, she was certain her bird had flown.