Denshi Jisho — Online Japanese dictionary

枢木 くるるぎ sliding wooden bolt (for holding a door or window shut)
Noun 
枢戸 くるるど door (with a pivot hinge)
Noun, Archaism 
暮方 くれがた evening; sunset; nightfall
Temporal noun 
呉竹 くれたけ Alternative name for henon bamboo (Phyllostachys nigra var. henonis)
Noun, Usually written using kana alone 
黒痣 くろあざ black mole; beauty mark
Noun 
黒蟻 くろあり black ant
Noun 
黒石 くろいし 1: black stone;
2: black (go pieces)
Noun 
蔵人 くろうど 1: keeper of imperial archives;
2: worker at a sake brewery
Noun 
藏人 くろうど 1: keeper of imperial archives;
2: worker at a sake brewery
Noun 
黒帯 くろおび black belt (judo, karate, etc.)
Noun 
黒黴 くろかび black mold; black mould
Noun 
黒髪 くろかみ black hair
Noun, No-adjective 
黒樫 くろがし black oak
Noun 
黒金 くろがね iron
Noun 
黒鴨 くろがも black scoter (duck)
Noun 
黒衣 くろぎぬ black clothes
Noun 
黒熊 くろくま black bear
Noun 
黒雲 くろくも dark clouds; black clouds
Noun 
黒熊 くろぐま black bear
Noun 
黒々 くろぐろ deep black
Adverb, Adverb taking the 'to' particle, Noun 
黒黒 くろぐろ deep black
Adverb, Adverb taking the 'to' particle, Noun 
黒米 くろごめ unpolished rice
Noun 
黒犀 くろさい black rhinoceros (Diceros bicornis)
Noun, Usually written using kana alone 
黒鷺 くろさぎ eastern reef heron
Noun 
黒炭 くろずみ black charcoal
Noun 
黒鯛 くろだい black porgy (Acanthopagrus schlegeli)
Noun 

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