Webster's Revised Unabridged Dictionary · 1913

Intonation

Intonation , noun

[See 1st Intonate.]

A thundering; thunder. [Obsolete] — Bailey

Intonation , noun

[Compare French intonation. See Intone.]

1.
(a) (Music) The act of sounding the tones of the musical scale.
(b)
(Music) Singing or playing in good tune or otherwise; as, her intonation was false.
(c)
(Music) Reciting in a musical prolonged tone; intonating, or singing of the opening phrase of a plain-chant, psalm, or canticle by a single voice, as of a priest. See Intone, transitive verb
2.
The manner of speaking, especially the placement of emphasis, the cadence, and the rise and fall of the pitch of the voice while speaking.