from The Century Dictionary and Cyclopedia

  • n. Any elevated object on land which serves for a direction to mariners in entering a harbor, or in sailing along or approaching a coast; a beacon, as a light-house, a mountain, etc.


  • Onward they sailed along the south bank of the estuary, past the great sea-carved stone arches of “Île Percée” that made it an important seamark.

    Champlain's Dream

  • The men came back saying they'd set up a seamark, but there was no place for a port.

    The Persian Boy

  • The ruins of the Cistercian Church which once graced this shore and raised above the trees its lighthouse tower, a seamark by day and a beacon by night, are among the loveliest in Wessex.

    Wanderings in Wessex An Exploration of the Southern Realm from Itchen to Otter

  • The sound of the strokes recalled his mind for the moment to those early days, when the ambition for a seat in Parliament had been the very seamark of his utmost sail.

    The Dictator

  • Where lies your landmark, seamark, or soul's star?

    Poems of Gerard Manley Hopkins Now First Published

  • Then falling into a moment’s revery, he again looked up towards the sun and murmured to himself: “Thou seamark! thou high and mighty Pilot! thou tellest me truly where I am — but canst thou cast the least hint where I shall be?

    Moby Dick; or the Whale


The word 'seamark' comes from 'sea' +‎ 'mark', on the model of 'landmark'.