- to render syntonic; tune to the same frequency.
Also especially British, syn·to·nise.
Origin of syntonize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for syntonize
It is found possible to "tune," or "syntonize," the aërial rod or wire of a receiving station with a transmitter.How it Works