This is the 774th most frequent Dutch word.
rug
"Rug" in Dutch means "back" in English.
Here, 'rug' is used in its primary anatomical sense, referring to a person's back.
Hij draagt de rugtas op zijn rug.
He carries the backpack on his back.
Here, 'rug' is again referring to a person's back, emphasizing its role in physical sensation or condition.
Na de lange wandeling voelde hij pijn in zijn rug.
After the long walk, he felt pain in his back.
In this sentence, 'rug' refers to the backrest of an object, specifically a chair, extending its meaning metaphorically.