Katakana
Tap any character to study it.
Basic 46
Voiced sounds ( ゛゜)
Two small marks turn k→g, s→z, t→d, h→b; a circle turns h→p. Same shapes, new voice.
Combos (small ゃゅょ)
An i-sound + small ゃゅょ blends into one syllable: き + ゃ = きゃ (kya).
Stroke-order diagrams from KanjiVG (CC BY-SA).