what's monogamy
- monogamy noun [U]. âº the âfact or âcustom of having a âsexual ârelationship or âmarriage with only one other âperson at a âtime Compare bigamy polygamy. Compare. bigamy. polygamy. monogamous adjective uk us /-mÉs/ âº a monogamous ârelationship. adjective uk us /-mÉs/.