"intone" in the verb sense

1. tone, chant, intone

utter monotonously and repetitively and rhythmically

"The students chanted the same slogan over and over again"

2. chant, intone, intonate, cantillate

recite with musical intonation recite as a chant or a psalm

"The rabbi chanted a prayer"

3. intonate, intone

speak carefully, as with rising and falling pitch or in a particular tone

"please intonate with sadness"

Source: WordNet® (An amazing lexical database of English)

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