Advertising in public spaces: billboards, transit, street furniture, place-based screens, airports. Traditional OOH is printed and sold on four-week periods; digital OOH is screen-based and increasingly programmatic. Geopath provides US audience measurement.
Related terms
Cite this entry:
Agency Echelon. "Out-of-Home." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/out-of-home/