Romance Languages:
* Spanish: compañero/a (male/female)
* French: compagnon/compagne (male/female)
* Italian: compagno/a (male/female)
* Portuguese: companheiro/a (male/female)
* Romanian: companion (the English word is used)
Germanic Languages:
* German: Gefährte/Gefährtin (male/female)
* Dutch: metgezel/metgezellin (male/female)
* Swedish: följeslagare/följeslagarinna (male/female)
* Danish: ledsager/ledsagerinde (male/female)
* Norwegian: følge/følge (used for both genders)
Slavic Languages:
* Russian: товарищ (tovarishch) (gender neutral)
* Polish: towarzysz/towarzyszka (male/female)
* Czech: spolucestující (gender neutral)
* Ukrainian: товариш (tovarysh) (gender neutral)
Other Languages:
* Chinese: 同伴 (tóngbàn)
* Japanese: 仲間 (nakama)
* Korean: 동반자 (dongbanja)
* Arabic: رفيق (rafīq) (male) / رفيقة (rafīqa) (female)
* Hindi: साथी (sāthī) (gender neutral)
Note: Some languages use gender-specific words for "companion," while others use gender-neutral terms. Additionally, some languages may have more specific words depending on the context, such as "traveling companion" or "study companion."