IPA: /ˈsɪm.bi.oʊt/
KK: /ˈsɪm.bi.oʊt/
A living organism that lives in close association with another organism, often benefiting from the relationship.
The alien symbiote attached itself to the host, granting it enhanced abilities.
Symbiote → It is formed from "sym-" (from Greek "syn-", meaning together) and "bios" (meaning life). The word describes an organism that lives together with another organism, often in a mutually beneficial relationship.
Think of two living things that exist 'together' ('sym-') in a way that benefits both — that's what a symbiote is.
No commonly confused words.