“-ssi” and “-nim” (씨 · 님) — the suffix that sets your rank
Every textbook teaches 씨 as “the polite one”. Attach it to a surname alone, or to anyone senior to you, and it is the opposite of polite.
nim
Every textbook teaches 씨 as “the polite one”. Attach it to a surname alone, or to anyone senior to you, and it is the opposite of polite.