[bill.board] n (1851): a flat surface (as of a panel, wall, or fence) on which bills are posted; specif: a large panel designed to carry outdoor advertising
[2]billboard vt (1950): to promote by a conspicuous display on or as if on a billboard
[bill.board] n (1851): a flat surface (as of a panel, wall, or fence) on which bills are posted; specif: a large panel designed to carry outdoor advertising
[2]billboard vt (1950): to promote by a conspicuous display on or as if on a billboard
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012