Both! It depends, in part, on the meaning. The element radium is masculine (el). "Radio" as a shortcut to "radiodifusión" (radio transmission) is feminine. For a radio receiver, both "el" and "la" are used.
We use the same word: cello.
The translation of the Spanish word "el" in English is "the".
Seasons is La Estaciones Seasons Spanish SeasonsSummer is El Verano Summer El VeranoAutumn is El Otoño Autumn El OtonoWinter is El Invierno Winter El InviernoSpring is La Primavera Spring La PromaveraSEASON AND MONTH SONGEn el invierno En el invieno diciembre enero febreroLa primavera La primavera marzo abril mayoEl verano El verano junio julio agustoSeptiembre Octobre November el Otono
If you refer the the Spanish El, as in El Playa (The Beach) it is the English THE, there are however a variety of tenses and 'sexes' of the word, EL, LA, LAS, etc. If you are referring to any other use of the world El, such as the name of God, you'd have to be slightly more specific.
The Spanish word "el pecho" translates to "the chest" in English.
The word for language in Spanish is idioma.
el tigre is the spanish word for tiger.
The Spanish word for elephant is "el elefante".
prende la aspiradora y el radio
"El burro" is the Spanish word for "the donkey."
The Spanish word "el hombre" translates to "the man" in English.
The Spanish word "quesos" is masculine.