IPA: /ˌɪntəˈlɒkjʊtə/
KK: /ˌɪntərˈlɒkjʊtər/
A person who participates in a conversation or dialogue, often in a formal or official context.
The diplomat acted as an interlocutor during the negotiations between the two countries.
Interlocutor → It is formed from "inter-" (meaning between) and "loqui" (meaning to speak). The word refers to someone who speaks between others, typically in a conversation or dialogue.
Think of someone who 'speaks between' ('inter-') others in a conversation — that's what an interlocutor does.
No commonly confused words.