nature; character; disposition
Refers to a person's innate character or temperament. Often used in fixed expressions like 性に合う (suits one's nature).
He quit the job that didn't suit his nature.
Covers biological sex, gender identity, and sexual activity/attraction. Context distinguishes the specific meaning.
Please fill in your sex on the application form.
Education about sex is important.
Grammatical gender, as in masculine, feminine, or neuter. Technical use in linguistics.
German nouns have grammatical gender.
-ty; -ity; -ness; -cy
Suffix indicating a quality or condition. Attaches to nouns or adjectival stems to form abstract nouns, e.g., 可能性 (possibility), 安全性 (safety).
The safety of this product has been confirmed.
I believe in his potential.
I feel this job suits my nature.
performance; capability; efficiency
individuality; personality; unique character
sexual desire; sex drive; lust
activity; chemical activity · active; chemically active
nature; disposition; temperament; character · quality; property; characteristic; nature
sex; gender
sexual (biological sex) · sexual (relations, attraction, abuse)
special characteristic; distinctive quality; trait; peculiarity
opposite sex · isomerism
intelligence; intellect
reason; rationality; sense
resistance; tolerance · resistance (biological/medical)
disposition; inclination; propensity · sexual disposition; fetish
sensitivity; sensibility; sense
same sex
sexual intercourse; sex; coitus
chronic
acute (illness)
sexual act; sexual intercourse
positive (test result) · positive; cheerful; optimistic
neutrality; neutral state; indifference · sexlessness; androgyny; neuter · neuter gender
aptitude; suitability; fitness
toxicity; virulence · toxic; virulent; poisonous
sexual love; eros
malignant; virulent; pernicious
sexual feelings; sexual sensation
sexually transmitted disease; STD; venereal disease