Denshi Jisho — Online Japanese dictionary

イドロ hydro
Noun, No-adjective 
yeah, yeah (used for half-hearted or insincere agreement)
Interjection, Colloquialism 
イフィ hi-fi
Noun, No-adjective 
イフン hyphen
Noun 
イホー Hi-HO
Noun, Computer terminology 
イミス older unmarried woman (wasei: high miss); old maid; spinster
Noun, Sensitive 
イレゾ high resolution
Noun, Computer terminology 
イレン Indo-Pacific tarpon (Megalops cyprinoides)
Noun, Usually written using kana alone 
ウント haunt
Noun 
ウンド hound
Noun 
えぬき Haenuki (variety of rice)
Noun 
オコゼ Hypodytes rubripinnis (species of waspfish)
Noun, Usually written using kana alone 
オユー oyster sauce (chi: haoyou)
Noun, Obscure term, Usually written using kana alone 
ガツオ striped bonito (Sarda orientalis); Mexican bonito
Noun, Usually written using kana alone 
briskly; smartly; promptly; clearly; lucidly
Adverb, Noun, Suru verb, Onomatopoeic or mimetic word 
クガン snow goose (Chen caerulescens); blue goose
Noun, Usually written using kana alone 
クジラ toothed whale (i.e. a whale of suborder Odontoceti)
Noun, Usually written using kana alone 
クニー hackney
Noun 
くれん silver carp (Hypophthalmichthys molitrix)
Noun, Usually written using kana alone 
クレン silver carp (Hypophthalmichthys molitrix)
Noun, Usually written using kana alone 
ゲタカ vulture
Noun, Usually written using kana alone, Colloquialism 
コエビ Japanese spear lobster (Linuparus trigonus)
Noun, Usually written using kana alone 
コフグ 1: (Usually written using kana alone) bluespotted boxfish (Ostracion immaculatus);
2: boxfish (any fish of family Ostraciidae); trunkfish
Noun 
コベラ chickweed; stitchwort (Stellaria sp.)
Noun, Usually written using kana alone 
コベラ fivestripe wrasse (Thalassoma quinquevittatum)
Noun 
ザード hazard
Noun 

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