wavelength

noun
UK /ˈweɪv.leŋθ/
US /ˈweɪv.leŋθ/

The distance from one wave top to the next wave top.

Red light has a longer wavelength than blue light.


OTHER MEANINGS

2. A way of thinking or feeling that matches someone else's.

My best friend and I are on the same wavelength.

3. The length of a radio or sound wave used for broadcasting.

The station broadcasts on a wavelength of 300 metres.

4. The distance between corresponding points on any repeating pattern.

Scientists measured the wavelength of the sound to find its pitch.