Definition of sing a different tune or song in English:

sing a different tune (or song)

Change one’s opinion about or attitude towards someone or something.
More example sentences
  • As one who's been at the battlefront, angrily detailing Hollywood's outrages against women for these many years, it's a relief to be singing a different tune and hoping the music lasts.
  • But these days, the businessman mayor is singing a different tune.
  • And he is already singing a different tune on key environmental, defence and foreign affairs issues he once passionately advocated.
See parent entry: sing

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Word of the day envenom
Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous