This is the 13468th most frequent Swedish word.
utbrast
"Utbrast" means "exclaimed" in English.
Here, 'utbrast' refers to exclaiming or bursting out emotionally, in this case, a laugh.
Hon utbrast i ett glatt skratt.
She burst out with a happy laugh.
In this sentence, 'utbrast' indicates suddenly expressing one's thoughts or feelings vocally.
När han såg resultatet utbrast han att det var fantastiskt.
When he saw the result, he exclaimed that it was fantastic.
This usage of 'utbrast' demonstrates shouting or expressing a sentiment impulsively.