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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

abstraction, abstract entity go
a general concept formed by extracting common features from specific examples

psychological feature go
a feature of the mental life of a living organism

event go
something that happens at a given place and time

happening, occurrence, occurrent, natural event go
an event that happens

motion, movement go
a natural event that involves a change in the position or location of something

wave, undulation
(physics) a movement up and down or back and forth

noun.event

12 Subcategories

gravity wave, gravitation wave go
(physics) a wave that is hypothesized to propagate gravity and to travel at the speed of light
sine wave go
a wave whose waveform resembles a sine curve
vibration, oscillation go
(physics) a regular periodic variation in value about a mean
fluctuation go
a wave motion
seiche go
a wave on the surface of a lake or landlocked bay
standing wave, stationary wave go
a wave (as a sound wave in a chamber or an electromagnetic wave in a transmission line) in which the ratio of its instantaneous amplitude at one point to that at any other point does not vary with time
traveling wave, travelling wave go
a wave in which the medium moves in the direction of propagation of the wave
sound wave, acoustic wave go
(acoustics) a wave that transmits sound
wave form, waveform, wave shape go
the shape of a wave illustrated graphically by plotting the values of the period quantity against time
shock wave, blast wave go
a region of high pressure travelling through a gas at a high velocity
impulse, pulse, pulsation, pulsing go
(electronics) a sharp transient wave in the normal electrical state (or a series of such transients)
flutter, flap, flapping, fluttering go
the motion made by flapping up and down