Synonyms of 'blab'
She'll blab it all over the school.
2 tell all
Don't blab about your plans until you are ready to make an announcement.
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If you disclose new or secret information, you tell people about it.
Neither side would disclose details of the transaction.
If you divulge a piece of secret or private information, you tell it to someone.
He was charged with divulging state secrets.
To reveal something means to make people aware of it.
She has refused to reveal her daughter's whereabouts.
Thesaurus for blab from the Collins English Thesaurus
If someone blabs about something secret, they tell people about it.