"괴물이 어디에 있습니까?"
Translation:Where is the monster?
괴물: from 怪物 (Middle Korean 괘〮무ᇙ〮), literally meaning strange thing
The 物 root can be found in other terms:
- 동물: from 動物, literally meaning “moving thing,” or an animal
- 건물: from 建物, literally meaning “building thing,” or just building
- 음식물 from 飮食物, literally meaning “(for) drinking eating thing,” or food and drink
There is nothing wrong with what you have heard. This is created by the 외 sound, an exception in vowel combination.
외 was created originally to be pronounced as euh /ø (~sir) but morphed throughout the ages. Now it sounds like "oe" or a short 웨 ("weh")/ 왜 ("wae").
Adding to ㄱ ("Gh"), it produces the sound pretty similar to 개 / 게 if spoken quickly.