This is the 6523rd most frequent French word.
hélène
"Hélène" is a French given name, equivalent to "Helen" in English.
The word 'Hélène' is used here as a proper noun, functioning as the subject of the sentence.
Hélène est une très bonne amie.
Hélène is a very good friend.
In this sentence, 'Hélène' is used as a proper noun, serving as the direct object of the verb 'rencontré'.
J'ai rencontré Hélène hier soir.
I met Hélène yesterday evening.
Here, 'Hélène' acts as a proper noun used with a preposition 'avec' to indicate the person involved in the conversation.