Radicals (
Radical27) two strokes
in Kanji;
Radicals (
Radical27) two strokes
in Kanji;
dimensional, e.g.
;
directional, e.g.
;
logical, e.g.
in
Hiragana: ten;
in
Kanji: ten;
Ju (place name); Juu (name); Kanna (female name);
numerological, e.g.
2;
structural, e.g.
10 a.k.a. Up Jun;
20 a.k.a. Mid
Jun; 
Radical64;
30 a.k.a. Down Jun;
Radical264;
10 years (decade); 100 years (century); 1000 years (millennium); Remark: 10, 100, 1000, ... are engineering notation, IFF SQRT2 design model, ±98 based;