Definitions of chant:

• noun:   a repetitive song in which as many syllables as necessary are assigned to a single tone
• verb:   recite with musical intonation; recite as a chant or a psalm

  Example: "The rabbi chanted a prayer"

• verb:   utter monotonously and repetitively and rhythmically

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

• name:  A surname (very rare: popularity rank in the U.S.: #47968)