Batman vigilantly watches over Gotham.
Here, Vigilantly is:

- Batman vigilantly watches over Gotham.
- Here, "vigilantly" is an adverb.

- এখানে, 'vigilantly' adverb 'watches' verb কে modify করেছে।
- অর্থাৎ, যে word কোনো verb- কে modify করে, তাকে Adverb বলে।

Vigilantly (Adverb):
- English Meaning: In a way that is always careful to notice things.
- Bangla Meaning: সতর্কভাবে।

- Example Sentence: Our community has acted vigilantly to ensure that all activities are appropriate.

Source: Cambridge Dictionary, Accessible Dictionary by Bangla Academy