い adjective  adjective (generic) 

• nimble, light

noun or verb acting prenominally  adjective (generic) 

• light (esp. in chemistry)

usually written using kana alone  prefix 

• slight, light, thin, faint, dim

obsolete kanji  irregular okurigana  JLPT N1  noun  noun (generic) 

• light, lamp, torch

popular  search-only kanji form  JLPT N5  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic) 

• brown, light brown, tawny

popular  JLPT N5  い adjective  adjective (generic) 

• sweet-tasting, sweet, sugary, sugared
• fragrant (smelling), sweet (music)
• lightly salted, light in salt, not spicy
• naive, overly optimistic, soft on, generous, indulgent, easy-going, lenient
• half-hearted, not finished properly
• insufficient, not satisfactory, inadequate, loose
• mild
• tempting, enticing, luring

popular  obsolete reading  JLPT N3  noun  noun (generic) 

• lightning, thunder, thunderbolt
• god of thunder, god of lightning
• anger, fit of anger

popular  JLPT N3  noun  noun (generic) 

• lighter

popular  JLPT N3  onomatopoeic or mimetic word  adverb 

• roughly, approximately, round about, more or less
• cursorily, briefly, quickly, lightly, roughly

popular  JLPT N2  onomatopoeic or mimetic word  adverb  noun or participle taking the aux. verb する  verb (generic)  noun (generic) 

• softly, gently, quietly, lightly
• stealthily, secretly, in secret
• to leave alone, to leave as it is