vs
QUICK ANSWER
"Un" is an indefinite article which is often translated as "a", and "araña" is a noun which is often translated as "spider". Learn more about the difference between "un" and "araña" below.
un(
oon
)An indefinite article is a word that indicates that a noun is not specific (e.g., a girl).
1. (singular)
b. an (before vowel sound)
Tienen una vieja cámara que todavía funciona.They have an old camera which is still working.
la araña(
ah
-
rah
-
nyah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (animal)
a. spider
Hay dos cosas que me aterran: las arañas y las alturas.There are two things that terrify me: spiders and heights.
2. (lamp)
a. chandelier
El hotel contaba con una gran araña con velas prendidas.The hotel had a large chandelier with lit candles.