Original: Waves are characterized by: Wave height (from trough to crest), Wavelength (from crest to crest), Period (time interval between arrival of consecutive crests at a stationary point), The direction of wave propagation.
Simplified: Waves are measured by: Height (from trough to crest) Wavelength (from crest to crest) Period (time interval between arrival of consecutive crests at a stationary point) Waves in a given area typically have a range of sizes.