セイ ショウ 
さが 
() sexual () gender () nature-ness
                                                         
せい (n) (1) nature (of a person), (2) sex, (3) gender, (suf) (4) -ty, -ity, -ness, -cy
せいかく (n) character, personality, disposition, nature
せいかんたい (n) erogenous zone
せいきゅう (adj-na,n) impatience, a quick temper
せいきょういく (n) sex education
せいこう (n,vs,adj-no) sexual intercourse
せいこう (n) inclination, tendency, nature, character
せいこう (n) character and conduct
せいしつ (n) nature, property, disposition
せいてき (adj-na,n,adj-no) (1) (relating to) gender, (2) sex, sexual
せいのう (n) ability, performance, efficiency
せいびょう (n,adj-no) venereal disease
しょうぶん (n) nature, disposition
せいへき (n) disposition, inclination, characteristic, idiosyncrasy
せいべつ (n) distinction by sex, sex, gender
せいよく (n,adj-no) sexual desire

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Etymologies: 中文字譜 : 説文解字