The act of sending out television or radio signals to reach a wide audience; also means spreading information widely.
From 'broadcast,' combining 'broad' and 'cast' (to throw), originally used in farming for spreading seeds widely—applied to radio/TV in the early 1900s.
The word 'broadcast' came from agriculture (throwing seeds far and wide), got borrowed for radio waves, and now we use it for social media posting—same word, totally different technology.
Complete word intelligence in one call. Free tier — 50 lookups/day.