Common words that rhyme with nark include ballpark, stark, spark, trademark, ark, rark, remark, park, fork, work, quirk, irk, handiwork, dunkirk and pork.
The dark caused her fear.
There was a stark contrast present.
They noticed a peculiar mark on the wall.
A question can spark discussion.
He made a racist remark today.
The park was filled with cheerful people.