A seiner is a large fishing net that hangs vertically in the water using floats and weights and is used to catch fish in a specific area.
Seiners are used by fishermen to catch a lot of fish at once.
Examples:
The fishermen used a seiner to catch a lot of fish.
The seiner hangs in the water to catch fish.
The seiner is a big net that catches fish.
The seiner caught so many fish, it was hard to pull it out of the water.
The seiner is like a big wall that catches fish.
The seiner is a big net that helps fishermen catch fish easily.