冷え込む
1
to get (very) cold;to get (much) colder
明け方近くは、ぐっと冷え込む。
It gets extremely cold toward dawn.
2
to feel very cold (of the body);to be chilled to the bone
3
to worsen (of relations, economic conditions, etc.);to decline
Other forms
冷えこむ 【ひえこむ】 (search-only kanji form)