impression
noun [ C ]
uk/ɪmˈpreʃən/ us MARKETING, E-COMMERCE (also ad view)
a single time that an internet advertisement is seen by a user:
They market a company's product for a fixed rate per 1,000 impressions.
See also
cost per impression
page view
PRODUCTION
all the copies of a book that have been printed at the same time without any changes being made:
This is the second impression of the encyclopedia.