Radicals ( Radical25) two strokes in Kanji;

dimensional, e.g.

Nippon Syllabary 's one of the characters: hi in Hiragana a.k.a. hi in Katakana;

www.jisho.org radical number 21 ... ;

directional, e.g.


logical, e.g.

in Kanji: spoon;

numerological, e.g.


structural, e.g.

spoon and chopsticks, also see: Sushi;

SYSTEM POINTER O O NUMBER (SPOON) e.g. L N ♯ doko WHERE "L" and "N" are swapped (spool, spoon);

in programming, O O, a.k.a. Object Oriented;