* Linguist: This is a general term for someone who studies language.
* English Linguist: This specifies their focus is on the English language.
* English Philologist: This emphasizes the historical and comparative aspects of English language studies.
* English Language Specialist: This is a broader term that could encompass teachers, researchers, or anyone with expertise in English.
* EFL/ESL Teacher: This is specific to someone who teaches English as a foreign/second language.
* English Language Tutor: Similar to an EFL/ESL teacher, but might have a more individualized focus.
The best term to use will depend on the specific context and the person's particular area of expertise.