This is the 2798th most frequent Japanese word.
重く
"重く" means "heavily" or "weightily" in English.
The word '重く' here is used to describe the physical weight of an object.
この荷物は意外と重くて、運ぶのが大変です。
This luggage is unexpectedly heavy, making it hard to carry.
The word '重く' in this sentence conveys a metaphorical weight in relation to a sense of responsibility.
彼は重く責任を感じているようだった。
He seemed to feel a heavy sense of responsibility.
Here, '重く' expresses the idea of seriousness or gravity when interpreting something.