This is the 53rd most frequent Hungarian word.
lett
"Became" (past tense of "to become").
In this sentence, 'lett' is the past tense form of 'become' used to indicate a change of state or position.
Ő lett az igazgató.
He became the director.
Here, 'lett' expresses the transition to a state of quietness, showing a change in circumstances.
Este hirtelen csend lett.
Suddenly, it became quiet in the evening.
In this usage, 'lett' conveys that something did not materialize or come to fruition.