What is a plank?

Question

What is a plank?

Answer 1

a board.

Answer 2

On a ship, there a a long wide board that protrudes past the edge of the boat over the water.

Answer 3

A long, wide board.

Answer 4

Several things. The term when used in the old days on board ship was a wood board to walk from the dock to the deck of the ships. It is also used to describe a wooden board for carpentry. Will this help?

Spartawo...

Answer 5

As in walk the plank?  The "gangplank", a wooden plank used to bridge from the dock to the rail of sailing ships and

usued to board and leave the ship.