A large and sudden rise and fall in the tide. / (proscribed) A large, sudden, and disastrous wave of water caused by a tremendous disturbance in the ocean; a tsunami. (See Usage notes below.)

(physics) A wave that can be modulated, either in amplitude, frequency, or phase, to carry or transmit images, music, speech, or other signals.

(physics) electromagnetic radiation having a wavelength between about .5 centimeters and 30,000 meters; used for the broadcasting of radio and television signals.

(physics) Electromagnetic radiation, such as light and radio waves.

(neurology) An electrical signal produced by the brain while the subject is relaxed.

(neurology) An electrical signal produced by the brain while the subject mentally active.

A short watercraft seating one rider, propelled by a two-ended paddle, designed for surfing waves.

A deep artificial wave in the hair produced by heated curling tongs.

(physics) a wave, propagated through a crystal lattice as a result of changes in the spin angular momentum of electrons in the lattice

(finance) A wave pattern used in some forms of technical analysis of securities prices.