Here are some synonyms for "blurted":
* Spurted
* Utter
* Exclaimed
* Shouted
* Yelled
Examples:
* "She blurted out the secret before she could stop herself."
* "He blurted a nervous laugh when he realized his mistake."
* "The child blurted out a question about Santa Claus."
The word "blurted" usually suggests that the speaker was taken aback or unprepared to speak. It implies that the words came out in a rush, without much thought.