This is the 985th most frequent Hungarian word.
lettem
"Became" or "I became."
The word 'lettem' is used here as the first-person past form of the verb 'become', indicating that the speaker transitioned into the profession of teaching.
Tanár lettem, mert szeretek tanítani.
I became a teacher because I love teaching.
In this sentence, 'lettem' indicates a state change to being happy, reflecting an emotional transition.
Nagyon boldog lettem, amikor megérkezett a levél.
I became very happy when the letter arrived.
Here, 'lettem' signifies the achievement of a certain state or status, in this case, success.