Romance Languages:
* Spanish: prometido/a (masculine/feminine)
* French: fiancé(e) (masculine/feminine)
* Italian: fidanzato/a (masculine/feminine)
* Portuguese: noivo/a (masculine/feminine)
* Romanian: logodit/ă (masculine/feminine)
Germanic Languages:
* German: Verlobte/r (masculine/feminine)
* Dutch: verloofd (gender neutral)
* Swedish: förlovad (gender neutral)
* Danish: forlovet (gender neutral)
* Norwegian: forlovet (gender neutral)
Slavic Languages:
* Russian: помолвленный/помолвленная (masculine/feminine)
* Polish: zaręczony/zaręczona (masculine/feminine)
* Czech: zasnoubený/zasnoubená (masculine/feminine)
* Ukrainian: заручений/заручена (masculine/feminine)
Other Languages:
* Chinese: 未婚夫/未婚妻 (wèi hūn fū/wèi hūn qī) (husband/wife to be)
* Japanese: 婚約者 (kon'yaku-sha) (engaged person)
* Korean: 약혼자 (yakhonja) (engaged person)
* Hindi: मंगेतर (mangetar) (engaged person)
Please note that these translations are not exhaustive, and there may be other words or phrases used in different languages to describe someone who is betrothed. Also, some languages may have more specific terms depending on the context, such as whether the couple is formally engaged or simply planning to marry.