homonym
nounUK /ˈhɒmənɪm/
US /ˈhɑːmənɪm/
A homonym is a word that sounds or looks the same as another word but means something different.
The words "bear" (the animal) and "bear" (to carry) are homonyms.
OTHER MEANINGS
2. In biology, a taxonomic name that is the same as another name for a different organism.
The two beetle species share a homonym, so one name had to be changed.
3. A person or thing with the same name as another.
The author is a homonym of a famous general.
4. A word with the same spelling or pronunciation as another but a different meaning or origin.
"Bat" (the animal) and "bat" (for baseball) are classic homonyms.