Fig.: to think the same way about something and understand each other well

We can't seem to get on (with each other): it's that we are not on the same wavelength

Insomma non ci troviamo proprio: non siamo sulla stessa lunghezza d'onda

At last night's condo association, I submitted a proposal to solve a longtime problem and, amazingly, we were all on the same wavelength: no arguing at all

Alla riunione condominiale di ieri sera ho suggerito una soluzione a un problema di vecchia data e, sorprendentemente, ci siamo trovati tutti dello stesso avviso: nessuna discussione

In the past, in order to listen to a radio program, you had to turn the dial until the receiver and the station broadcasting the program were on the same wavelength, thus being “connected”