What does the word intonation mean?

Usage examples for intonation

  1. Brandon's manner was stiff and formal, and his voice had assumed a slight nasal intonation. – Cord and Creese by James de Mille
  2. In an instant he was on his feet and as he stood looking about him in bewilderment he heard the roar of the river and detected in the sound a threatening intonation that had not been there on the previous day. – Ted and the Telephone by Sara Ware Bassett
  3. The next moment he realised that he had heard the intonation of Miss Wycliffe's voice, or had imagined it. – The Mayor of Warwick by Herbert M. Hopkins