-ent — one who, a thing that, (adj.) being (affix)

president B1

/ˈpɹez.ɪ.dənt/ The elected head of state in a republic, such as the United States. M S

student A1

/ˈstjuː.dn̩t/ A person who is studying at a school, college, or university. M S

opponent B2

/əˈpəʊ.nənt/ A person you compete or fight against in a game, contest, or argument. M S

resident B1

/ˈɹɛzɪd(ə)nt/ A person who lives in a particular place. M S

correspondent B2

/ˌkɔɹ.ɪˈspɑn.dənt/ A journalist who reports news, often from a distant or foreign place. M S