Definition of meres:
(adj) :
Just, only; no more than, pure and simple, neither more nor better than might be expected.
(n) :
Boundary, limit; a boundary-marker; boundary-line.
(n) :
(dialectal or literary) A body of standing water, such as a lake or a pond (formerly even a body of seawater), especially a broad, shallow one. (Also included in place names such as Windermere.)
(v) :
(cartography) To decide upon the position of a boundary; to position it on a map.
(n) :
A Maori war-club.
(adj) :
(obsolete) Pure, unalloyed .