She is right, Many words masculine in spanish ends with the letter "o" in singular. "os", "es" in plural. in singular you have to say "El". El televisor-Singular, El espejo-Singular. But in plural you have to say L"os". L"os" televisor"es", L"os" espej"os". But Feminine words ends with an "a" in singular, "as" in plural. "la" pantall"a"-singular, "la" revist"a"-singular. "las" pantall"as"-plural, "las" revist"as"-plural. But if the word ends in "e" the most of the words are masculine. "El" perfum"e"-singular, L"os" perfum"es"-plural.

Hola, Tenmo: Unfortunately I cannot provide you with a 100% reliable rule but maaaany masculine words end up with -o (-os for the plural), while maaaany femenine words have an -a (-as for the plural) ending. I wish you a lot of luck with other endings, such as the tricky -e... LA gente (femenino) EL puente (masculino) To ask for the gender of a word, you could say something like: "¿Esta palabra es masculina o femenina?" "La palabra XXXXX ¿Qué género tiene?" I hope it helps. Mucha suerte con tu español. Saludos, Lucía

Hi Tenmo I have an interesting video for you. From my channel of youtube, talking about female and male. http://www.youtube.com/watch?v=ECipVbgb6wE