Intonate \In"to*nate\, v. i. [imp. & p. p. {Intonated}; p. pr. & vb. n. {Intonating}.] [See {Intone}.] 1. (Mus.) To sound the tones of the musical scale; to practice the sol-fa. 2. To modulate the voice in a musical, sonorous, and measured manner, as in reading the liturgy; to intone.