Wave speed is known as 'celerity'.

The Sun exerts about twice as much force to produce tides as the Moon.

Wave steepness is its height over its wavelength.

On a beach, a wave period is the time between the breaking of consecutive waves.

Electricity can be harnessed from the motion of the waves.

The Beaufort Wind Scale is a means to describe wind speed and the state of the sea.

Most tsunamis occur in the Pacific Ocean.

DART is an Atlantic Ocean tsunami warning system.

Deep water waves occur in waters with depths greater than 1/20 of the wavelength. 

Surfers look for spilling breakers to indicate where the best places are to surf.