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"El avión" is a form of "avión", a noun which is often translated as "plane". "Primero" is an adjective which is often translated as "first". Learn more about the difference between "el avión" and "primero" below.
el avión()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (aviation)
b. airplane
El Airbus 800 es el avión de pasajeros más grande.The Airbus 800 is the largest passenger airplane ever made.
c. aircraft
Un combustible nuevo para aviones comerciales sería muy útil.A new fuel for commercial aircraft would be very useful.
d. aeroplane (United Kingdom)
Regionalism used in the United Kingdom
Me gustaría tener un avión privado para viajar por el mundo.I'd like to have a private aeroplane to fly around the world.
2. (animal)
primero()
An adjective is a word that describes a noun (e.g., the big dog).
1. (position)
a. first
Luis fue el primer invitado en llegar a la fiesta.Luis was the first guest to arrive at the party.
2. (in time)
3. (principal)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
This means that the noun can be masculine or feminine, depending on the gender of the noun it refers to (e.g., el doctor, la doctora).
a. the best
Era el primero en matemáticas en séptimo grado.I was the best in mathematics in seventh grade.
