Is aux ecouter a masculine or feminine word in french?

"Aux" is not a word on its own in French. It is a contraction of "à les" which means "to them".

* "à" is a preposition and is invariable (doesn't change based on gender).

* "les" is a plural definite article, which is masculine plural.

Therefore, "aux" is considered masculine plural.

Let me know if you have any other French grammar questions!