robert gray(n = noun.person) gray - American navigator who twice circumnavigated the globe and who discovered the Columbia River (1755-1806);
is a kind of navigator

african gray, american gray birch, anne robert jacques turgot, arthur robert ashe, asa gray, ash gray, charcoal gray, charles robert darwin, charles robert redford, dapple gray, davy's gray, donald robert perry marquis, dwarf gray willow, eastern gray squirrel, gray, gray alder, gray area, gray birch, gray catbird, gray eminence, gray flounder, gray fox, gray goldenrod, gray hen, gray jay, gray kingbird, gray lemming, gray market, gray matter, gray mullet, gray partridge, gray polypody, gray poplar, gray sage, gray sea eagle, gray skate, gray snapper, gray sole, gray substance, gray whale, gray willow, gray wolf, great gray owl, gustav robert kirchhoff, henry m. robert, henry martyn robert, herb robert, herbs robert, leroy robert paige, otto robert frisch, oxford gray, payne's gray, pearl gray, robert, robert a. heinlein, robert abram bartlett, robert adam, robert alexander schumann, robert andrews millikan, robert anson heinlein, robert barany, robert bartlett, robert benchley, robert boyle, robert brown, robert browning, robert bruce mathias, robert bunsen, robert burns, robert burns woodward, robert charles benchley, robert charles venturi, robert clive, robert curl, robert de niro, robert e lee day, robert e lee's birthday, robert e. lee, robert e. peary, robert edward lee, robert edwin peary, robert emmet sherwood, robert f. curl, robert falcon scott, robert floyd curl jr., robert frost, robert fulton, robert graves, robert herrick, robert hooke, robert hutchings goddard, robert i, robert james fischer, robert jemison van de graaff, robert joffrey, robert king merton, robert koch, robert lee frost, robert louis balfour stevenson, robert louis stevenson, robert lowell, robert m. yerkes, robert macgregor, robert maynard hutchins, robert mearns yerkes, robert merton, robert mills, robert mitchum, robert morris, robert motherwell, robert nesta marley, robert oppenheimer, robert orr, robert owen, robert peary, robert peel, robert penn warren, robert r. livingston, robert ranke graves, robert redford, robert robinson, robert schumann, robert scott, robert southey, robert the bruce, robert traill spence lowell jr., robert treat paine, robert tyre jones, robert van de graaff, robert venturi, robert walpole, robert wilhelm bunsen, robert william service, robert woodrow wilson, robert woodward, silver gray, sir robert eric mortimer wheeler, sir robert peel, sir robert robinson, sir robert walpole, steel gray, tattletale gray, thomas gray, thomas robert malthus, western gray squirrel