wavelength
noun
[ ˈweɪvlɛŋ(k)θ ]
• the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
• "a range of wavelengths"
• a person's ideas and way of thinking, especially as it affects their ability to communicate with others.
• "when we met we hit it off immediately—we're on the same wavelength"
