coast-to-coast meaning

adjective
  Covering the whole country, nationwide

[American idiom]
from the Atlantic to the Pacific Oceans (in the continental U.S.A.); all the land between the Atlantic and Pacific Oceans.
• My voice was once heard on a coast-to-coast radio broadcast.
• Our car made the coast-to-coast trip in eighty hours.

[American slang]
from the Atlantic to the Pacific Oceans (in the continental U.S.A.); all the land between the Atlantic and Pacific Oceans (considered in either direction).
  My voice was once heard on a coast-to-coast radio broadcast.
  Our car made the coast-to-coast trip in eighty hours.

• coast:    Noun: coast & ...
• adelie coast:    Noun: Adelie Coast ...
• atlantic coast:    Noun: Atlantic Coa ...

Examples

1. this edition of search for truth will air coast-to-coast on prime time tonight.