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"El estadio" is a form of "estadio", a noun which is often translated as "stadium". "La silla" is a form of "silla", a noun which is often translated as "chair". Learn more about the difference between "el estadio" and "la silla" below.
el estadio()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
la silla()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (furniture)
