Media Planning Glossary

Clear, practical definitions of media planning terms — from CPM to connected TV, programmatic to reach curves. Written for practitioners, not textbooks.

C

CPM (Cost Per Mille) (CPM)

CPM stands for Cost Per Mille (Latin for 'thousand') and measures the cost an advertiser pays for 1,000 ad impressions. It is the most widely used pricing model in display, video, and programmatic advertising.

Plan smarter with Halliard

Put these terms into practice — plan, buy, and optimize media with a single platform.

Get Started Free