Jisho

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Particle
1. yes?; no?; isn't it?; is it?used at sentence-end; indicates a question (sometimes rhetorical)
  • がっこう学校
  • いる
  • はず
  • おまえ
  • なぜ
  • こんな
  • ところ
  • いる
  • Why are you here when you should be in school?
2. or; whether or notafter each alternative
3. some- (e.g. something, someone)See also 何か, after an interrogative
4. hmm; huhSee also とか, indicates doubt, uncertainty, etc.; sometimes after other particles
  • なぜ
  • おこ怒った
  • まった全く
  • はっきり
  • している
  • Why he got angry is quite clear.
Prefix
5. verySee also か弱い, emphatic prefix; usu. before an adjective
Suffix
6. -al; -ial; -ic; -ical; -ish; -ySee also 定か, suffix forming adjectives or adverbs; after an indeclinable word
Adverb
7. in that wayArchaism
Wikipedia definition
8. Ka (kana)か, in hiragana, or カ in katakana, is one of the Japanese kana, which each represent one mora. Both represent [ka ka]. The shapes of these kana both originate from 加. The character can be combined with a dakuten, to form が in hiragana, ガ in katakana, and ga in Hepburn romanization. The phonetic value of the modified character is [ɡa ɡa] in initial positions, and varying between [ŋa ŋa] and [ɣa ɣa] in the middle of words.
Read “Ka (kana)” on English Wikipedia
Read “か” on Japanese Wikipedia
Read “Ka (kana)” on DBpedia

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