Basic Guidelines For English Spellings
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See US English definition of regret
See UK English definition of regret
See Spanish definition of pesar
1‘they may come to regret their decision’
applaud, welcome
2‘it made him regret the passing of his youth’
1‘it was an injudicious action, and both players later expressed regret’
satisfaction
2regrets‘please give your grandmother my regrets as I have to leave’
3‘the family left London with genuine regret’
happiness, gladness