Aren't American cops shooting in the street?

your word would be isle.

isle is an island or peninsula especially a small one.

if you add the letter "a" you get aisle, which is a passage between 2 rows of something like chairs, shelves, or something else.

the answer is b. i'm positive it's that answer.

1.cosplay today

2.supernova

3.club karma

4.vortex

5.nightshade

6.utopia