This is the 2308th most frequent French word.
montrée
"Montrée" is the feminine past participle of the verb "montrer," meaning "shown" in English.
In this sentence, 'montrée' is the feminine past participle agreeing with the preceding direct object 'me.'
Elle m'a montrée les montagnes depuis sa fenêtre.
She showed me the mountains from her window.
Here, 'montrée' agrees with 'lui,' indicating the feminine object who was shown the necessity.
La situation lui a montrée la nécessité de changer.
The situation showed her the necessity of changing.
This use of 'montrée' again aligns with the preceding direct object 'me,' which is feminine.