[ˈmɒdjʊleɪt], (Verb)

Definitions:
- exert a modifying or controlling influence on
(e.g: the state attempts to modulate private business's cash flow)

- vary the strength, tone, or pitch of (one's voice)
(e.g: we all modulate our voice by hearing it)


Phrases:

Origin:
mid 16th century (in the sense ‘intone a song’): from Latin modulat- ‘measured, made melody’, from the verb modulari, from modulus ‘measure’ (see modulus)