同どう性せいどうせいCommon word›JLPTN1›Freq.FrequencyTop 10,000Meanings1noun, noun which may take the genitive case particle 'no'same sexRefers to people of the same sex or gender. Often used attributively with の, as in 同性の友達 (same-sex friend). Contrasts with 異性 (opposite sex).See also: 異性同どう性せいの友とも達だちと旅りょ行こうに行いった