각별히 + 조심하다/신경 쓰다/주의하다
especially, particularly, with special care
Example
겨울철에는 건강에 각별히 신경 써야 해요.
In winter, you should take special care of your health.
Word parts
각 each+별 separate
Literally 'each set apart' — singled out for special attention.
Related words