wavelength
UK: ˈweɪvleŋθ | US: ˈweɪvleŋθ
n. the distance between successive crests of a wave, especially in sound or electromagnetic waves
n. (figurative) a shared understanding or perspective
The word "wavelength" emerged in the early 19th century, combining "wave" (from Old English wafian, meaning "to fluctuate") and "length" (from Old English lengþu, meaning "linear extent"). It originally described the physical property of waves but later gained metaphorical use to denote alignment in thought or communication. The morphemes preserve their literal meanings, making the compound highly intuitive.
The wavelength of visible light determines its color.
Their ideas were on the same wavelength during the discussion.
Scientists measured the wavelength of the radio signal.
Miscommunication arises when people are on different wavelengths.
Adjust the antenna to capture the correct wavelength.