Définitions
1.NounThe top of a mast.
2.NounA list of a newspaper or other periodical's main staff, contributing writers, publisher, circulation, advertising rates etc.
3.NounThe title (normally in a large and distinctive font) of a newspaper or other periodical at the top of the front page; the publication itself or the rights to it.
4.NounThe logo of a broadcaster used in an ident.
5.VerbTo send to the masthead as a punishment.
6.VerbTo furnish (a newspaper) with a masthead.