The term featural was introduced by Geoffrey Sampson to describe the Korean alphabet[1]: 120 and Pitman shorthand.
[3] Others include stenographies and constructed scripts of hobbyists and fiction writers (such as Tengwar), many of which feature advanced graphic designs corresponding to phonologic properties.
[4][clarification needed] This is a small list of examples of featural writing systems by date of creation.
The International Phonetic Alphabet (IPA) also has some featural elements, for example in the hooks and tails that are characteristic of implosives, ɓ ɗ ʄ ɠ ʛ, and retroflex consonants, ʈ ɖ ʂ ʐ ɳ ɻ ɽ ɭ.
The Fraser alphabet used for Lisu rotates the letters for the tenuis consonants ꓑ /p/, ꓔ /t/, ꓝ /ts/, ꓚ /tʃ/, and ꓗ /k/ 180° to indicate aspiration.