shorthand(rough and rapid method of writing) noun [UK: ˈʃɔːt.hænd] [US: ˈʃɔːrt.ˌhænd]I've decided to learn shorthand. = He decidido aprender la taquigrafía.
stenography(the practice of transcribing speech, usually using shorthand) noun [UK: stə.ˈnɒ.ɡrə.fi] [US: stə.ˈnɒ.ɡrə.fi]
tachygraphy [tachygraphies](the art and practice of rapid writing) noun [UK: takˈaɪɡrəfi] [US: tækˈaɪɡrəfi]