noun a thundering; thunder.
2. intonation ·noun the act of sounding the tones of the musical scale.
3. intonation ·noun singing or playing in good tune or otherwise; as, her intonation was false.
4. intonation ·noun 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, ·vt.