Il gatti or Le gatte?

[Lindwurm]

Which one do I use? Or are they interchangeable? In what circumstances would I use each. or are they up to the discretion and preferences of the speaker, like synonyms?

[AledelA]

"I" is for plural male nouns that start with a consonant. In this case, "I Gatti".

"Le" for plural female nouns: "Le Gatte".

It is according to gender.