Answer: wavelength

AnswerCrossword Clue
WAVELENGTHMeasure of the evening's success when saying farewell?
WAVELENGTHSympathetic folks are on the same one
WAVELENGTHOn the same ... (in rapport)
WAVELENGTHKindred spirits are often on the same one
WAVELENGTHRadio-dial reading
WAVELENGTHSee image
wavelengthA person's ideas and way of thinking, esp. as it affects their ability to communicate with others
wavelengththe distance in the line of advance of a wave from any one point to the next point of corresponding phase
wavelengthThis distance as a distinctive feature of radio waves from a transmitter
wavelengthThe distance between successive crests of a wave, esp. points in a sound wave or electromagnetic wave