modulates; modulated; modulating
1
formal
: to change the sound of (your voice) by making it quieter, higher, lower, etc.
Please modulate [=soften, tone down] your voice.
Because she doesn't modulate her voice, she sounds the same when she's excited as when she's sad.
2
music
: to move gradually from one key to another
The music quickly modulates from its original key, changing the mood of the song.
3
: to change or adjust (something) so that it exists in a balanced or proper amount
These organs modulate [=regulate] the amount of salt in the body.
Cite this Entry
“Modulate.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/modulate. Accessed 25 Aug. 2026.
Copy Citation
