Korean · Pronunciation Guide
dong-nyo. Written with a ㄹ, but after the nasal ㅇ that ㄹ becomes an n -- which is why the romanization shows nyo and not ryo.
dongnyo
Two blocks. The rule to name is ㄹ-nasalization: a ㄹ following ㅇ or ㅁ becomes ㄴ, which is a systematic change in Sino-Korean compounds and one the spelling deliberately hides.
Listen: 동료
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
회사 동료하고 점심을 먹어요.
Hoesa dongnyohago jeomsimeul meogeoyo.
I have lunch with a coworker.
Listen: 회사 동료하고 점심을 먹어요.
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
회사 동료하고 점심을 먹어요 keeps the nasalization intact and follows it with 점심을, where the ㅁ resyllabifies forward to give jeom-shi-meul. The whole middle of the sentence is nasal-heavy.
Reading it as 'dong-ryo' is the natural response to the spelling, and it is wrong, because Korean will not allow ㄹ directly after that nasal. Learners also release a g after 동, the same English habit that spoils 강하다 and 중요하다 -- the ㅇ is resonance and nothing more.