This is the 10447th most frequent French word.
laissée
"Laissée" means "left" or "allowed" (feminine singular past participle of "laisser").
Here, 'laissée' is the past participle of the verb 'laisser', used with the auxiliary verb 'avoir' to form the past tense. It is inflected to match the direct object 'le vase' here, indicating it is feminine singular.
Elle a laissée tomber le vase par accident.
She accidentally let the vase fall.
In this sentence, 'laissée' is part of a reflexive construction 'je me suis laissée', indicating that the subject is feminine (singular for 'je') and has undergone the action of 'convincing'.
Je me suis laissée convaincre par ses paroles.
I let myself be convinced by her words.
Here, 'laissée' is an adjective derived from the participle of 'laisser', describing 'une chance'. It agrees in gender (feminine) and number (singular) with 'chance'.