Meaning: the head or top of a mast
Meaning: the title of a newspaper or magazine; usually printed on the front page and on the editorial page
Meaning: 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.
Next day the masthead of their boat was seen sticking out of the water near Sunday Island. The pilot schooner went down and hauled the boat to the surface, but nothing was found in her except the sand-ballast and a bottle of rum. Her sheet was made fast, and when the squall struck her she had gone down like a stone.