A kaiak is a small boat that is pointed at both ends. It is moved by a person using a paddle.
Kaiaks are often used for fun or for exercise, and they are often seen in cold places like the Arctic.
Examples:
I saw a kaiak on the lake.
She likes to go kaiaking on the river.
The kaiak is red and white.
I want to go kaiaking with my friend.
In the movie, the hero escapes in a kaiak.
He bought a new kaiak for his birthday.