Reach

Reach is the number or percent of the target market being exposed to an advertising message within a given time period.

Definitions

According to Product Manager's Handbook by Gorchels (2nd edition),

Reach. The number or percent of the target market being exposed to an advertising message within a given time period.

According to the Marketing Communications by Fill (5th edition),

Reach. A media planning concept that refers to the percentage of the target audience who are exposed to the message at least once during the campaign.