a listing printed in all issues of a newspaper or magazine (usually on the editorial page) that gives the name of the publication and the names of the editorial staff, etc.
"When I started working for the local paper, my first task was to update the masthead with my new byline as the city editor."
the title of a newspaper or magazine; usually printed on the front page and on the editorial page
"The editor noticed that the new masthead had been accidentally placed in the center column instead of the top."
the head or top of a mast
"The sailor climbed to the very top of the mast where the flag fluttered in the wind."
The top of a mast.
"The old sailor climbed to the very tip of the mast to check for any loose rigging at the highest point."
To send to the masthead as a punishment.
"The coach ordered the player who missed three consecutive free throws to report directly to the masthead after practice."