| Verb | 1. | modulate - change the key of, in music; "modulate the melody"music - musical activity (singing or whistling etc.); "his music was his central interest" spiel, play - replay (as a melody); "Play it again, Sam"; "She played the third movement very beautifully" | |
| 2. | modulate - of one's speech, varying the pitch | |
| 3. | modulate - fix or adjust the time, amount, degree, or rate of; "regulate the temperature"; "modulate the pitch"adjust, correct, set - alter or regulate so as to achieve accuracy or conform to a standard; "Adjust the clock, please"; "correct the alignment of the front wheels" | |
| 4. | modulate - adjust the pitch, tone, or volume ofadjust, correct, set - alter or regulate so as to achieve accuracy or conform to a standard; "Adjust the clock, please"; "correct the alignment of the front wheels" | |
| 5. | modulate - vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves)vary, alter, change - make or become different in some particular way, without permanently losing one's or its former characteristics or essence; "her mood changes in accordance with the weather"; "The supermarket's selection of vegetables varies according to the season" | |