Denshi Jisho — Online Japanese dictionary

やく 1:
2: (Slang) dope; narcotics; drugs; (Noun suffix) medication; drug; treatment; anti-
Noun 
くすり 1: medicine; pharmaceuticals; (legal) drugs;
2: efficacious chemical (i.e. gunpowder, pesticide, etc.);
3: (pottery) glaze;
4: small bribe
Common word, Noun 
いやく 1: medicine;
2: (Abbreviation) Pharmaceutical and Food Safety Bureau
Common word, Noun, No-adjective 
かやく gunpowder; powder
Common word, Noun 
しやく reagent
Common word, Noun 
まやく narcotic drugs; narcotic; opium; dope
Common word, Noun, No-adjective 
かやく spices; seasoning; adding extra ingredients (med)
Noun 
ぎやく inactive placebo; placebo
Noun 
ぎやく inactive placebo; placebo
Noun 
げやく laxative
Noun 
ざやく suppository
Noun 
ざやく suppository
Noun 
じやく one's usual medicine
Noun 
せやく (dispensation of) free medicine
Noun, Suru verb 
ひやく nostrum; secret medicine
Noun 
びやく aphrodisiac
Noun 
ほやく 1: adjuvant;
2: revitalizing stimulant (in Chinese medicine)
Noun 
まやく narcotic drugs; narcotic; opium; dope
Noun, No-adjective 
げきやく powerful medicine; strong poison
Common word, Noun 
しんやく a new medicine
Common word, Noun 
せいやく medicine manufacture; drug manufacture
Common word, Noun, No-adjective 
だんやく ammunition
Common word, Noun 
とうやく administration; medication; dosage
Common word, Noun, Suru verb 
どくやく poison
Common word, Noun 
のうやく agricultural chemical (i.e. pesticide, herbicide, fungicide, etc.); agrochemical; agrichemical
Common word, Noun, No-adjective 
ばくやく explosive; blasting powder
Common word, Noun 
めぐすり eye drops; eyewash
Common word, Noun 
いぐすり stomach medicine
Noun 

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