Definition of sing a different tune
: to change the way one talks about something : to have a different opinion about something They say they're not worried about money, but once they see how much the new equipment will cost, they'll be singing a different tune.
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
You're (Probably) Saying It Wrong
18 words even you might be mispronouncing
Great Big List of Beautiful & Useless Words
Along with their degrees of usefulness
What's the Difference?
These words shouldn't be used interchangeably
Words For Things You Didn't Know Have Names
When 'thingamajig' and 'thingamabob' just won't do
Ask the Editors