Katakana writes the same sounds as hiragana with angular shapes. It is used for loanwords, foreign names, sound effects, and emphasis, plus a few extra combinations for sounds Japanese does not otherwise have.
The same 46 sounds as hiragana. Katakana is used for loanwords, foreign names, onomatopoeia, and emphasis.
Two small strokes voice a consonant (k → g, s → z, t → d, h → b) and a small circle turns h into p.
An i-column kana followed by a small ャ, ュ, or ョ blends into a single syllable.
Combinations with small vowels that only exist in katakana, used to write sounds Japanese does not otherwise have.