Definition of "wave-length" [wave-length]

• The distance between the crests of two adjacent waves, or between the lowest parts of the depressions on each side of a wave; more generally, the distance between any particle of the disturbed medium and the next which is in the same phase with it. See wave, 3. (noun)

The Century Dictionary (Public Domain)

• "It's as if he's operating on a unique musical wave-length."
• "Then, you would connect with a partner with whom you experienced a stronger romantic, soul-mate connection -- a shared "same wave-length" kind of feeling about how you envision your life, growing and unfolding in the years ahead."
• "Sure, they are nice people, but on a different wave-length."