This document defines common broadcasting terms used in radio and television. It provides definitions for various terms including station identification, station ID, time check, spiel, sign on, sign off, opening billboard, closing billboard, commercial spots, plug, commercial break, bumpers, announcement-on-board, live credits, closing credits, dead air, ad lib, stingers, music bed, sound effects, taped-on-air, program grid, program plan, and sequence guide. Each term is defined in 1-2 sentences with some terms including examples. The document aims to educate readers on industry terminology.