a long, thin, flat piece of timber, used especially in building and flooring.

a fundamental point of a political or other programme

the central plank of the bill is the curb on industrial polluters

a physical exercise designed to strengthen the abdominal muscles, in which one performs a press-up and holds the raised position for a set period of time

the session usually include a lot of core work, lunges, planks, and squats

a stupid person.

make, provide, or cover with planks

the ship was planked with teak

put or set (something) down forcefully or abruptly

Ned planked the glasses in front of him

hide (something)

he had planked £1,000 under the mattress