Radicals ( Radical4) one stroke in Kanji;

dimensional, e.g.

Nippon Syllabary 's one of the characters: no in Hiragana a.k.a. no in Katakana;

directional, e.g.


logical, e.g.

literally, "by" ... ;

similar to slash character, if straight;

string by itself, if curve;

numerological, e.g.


structural, e.g.

IFF Mathematics, slash character is division operator;
slash character in programming e.g. ASCII (47);