Intonate is a word that means to speak or utter words in a particular tone or manner. Looking for synonyms of this word, we can use terms like emphasize, accentuate, stress, or vocalize. Also, words like articulate, enunciate, or pronounce can be used to refer to the way someone is speaking. Another set of synonyms could be pitch, modulate, or inflect, pointing to the importance of the tone of voice and its variations. In a broader sense, intonate may also be replaced by terms like communicate, express, or convey, expressing the idea of transmitting information or emotions through language and speech.