1.  japanese(n = noun.person) nipponese - a native or inhabitant of Japan;
is a kind of asian, asiatic
is a member of japan, nihon, nippon
has particulars: ryukyuan, jap, nip, geisha, geisha girl, shogun
Derived form adjective japanese₁

2.  japanese(n = noun.communication) - the language (usually considered to be Altaic) spoken by the Japanese;
is a kind of altaic, altaic language
has particulars: ryukyuan

   japanese(a = adj.pert) nipponese - of or relating to or characteristic of Japan or its people or their culture or language; "the Japanese Emperor"; "Japanese cars"
Derived form noun japanese₁

   Of or pertaining to Japan, or its inhabitants. [1913 Webster]

1.  A native or inhabitant of Japan; collectively, the people of Japan. [1913 Webster]

2.  The language of the people of Japan, called in the Japanese language nihongo. [1913 Webster]

japanese, n. & adj.
--n. (pl. same)
1 a a native or national of Japan. b a person of Japanese descent.
2 the language of Japan.
--adj. of or relating to Japan, its people, or its language.

Idiom:
Japanese cedar = CRYPTOMERIA. Japanese print a colour print from woodblocks. Japanese quince = JAPONICA.

imperial japanese morning glory, japanese allspice, japanese andromeda, japanese angelica tree, japanese apricot, japanese archipelago, japanese banana, japanese barberry, japanese barnyard millet, japanese beech, japanese beetle, japanese bittersweet, japanese black pine, japanese brome, japanese capital, japanese carpet grass, japanese cedar, japanese cherry, japanese chess, japanese chestnut, japanese clover, japanese crab, japanese deer, japanese deity, japanese flowering cherry, japanese honeysuckle, japanese hop, japanese iris, japanese islands, japanese ivy, japanese lacquer tree, japanese lawn grass, japanese leaf, japanese leek, japanese lilac, japanese lime, japanese linden, japanese maple, japanese medlar, japanese millet, japanese monetary unit, japanese morning glory, japanese oak, japanese oyster, japanese pagoda tree, japanese persimmon, japanese pink, japanese plum, japanese poinsettia, japanese privet, japanese quince, japanese radish, japanese red army, japanese red pine, japanese rose, japanese snowbell, japanese spaniel, japanese spurge, japanese stranglehold, japanese sumac, japanese table pine, japanese tree lilac, japanese umbrella pine, japanese varnish tree, japanese wistaria, japanese yew