Be on the same wavelength

The expression "be on the same wavelength" is a metaphorical way of saying that two or more people are in agreement or have a similar understanding of a particular subject or situation. It implies that they share a common perspective, view, or approach to the topic at hand.

This phrase likely originates from the idea of radio waves or other types of electromagnetic waves, which can have different frequencies or wavelengths. When two devices are operating on the same wavelength, they can communicate effectively and understand each other. Similarly, when people are "on the same wavelength," they can communicate and collaborate effectively because they share a common understanding or perspective.

Here's an example of how this phrase might be used in conversation:

I'm so glad we're on the same wavelength about this project. It makes it so much easier to work together when we have the same vision and goals in mind.

In this example, the speaker is expressing satisfaction that they and their colleague share a similar understanding of the project they're working on, which facilitates better teamwork and collaboration.