seven seas

or Seven Seas

Origin of seven seas

First recorded in 1870–75
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British Dictionary definitions for seven seas

seven seas

pl n
  1. the oceans of the world considered as the N and S Pacific, the N and S Atlantic, and the Arctic, Antarctic, and Indian Oceans
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for seven seas

Seven Seas

n.

1872, the Arctic, Antarctic, North Atlantic, South Atlantic, North Pacific, South Pacific, and Indian.

Online Etymology Dictionary, © 2010 Douglas Harper