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"Antes" is an adverb which is often translated as "before", and "ante" is a preposition which is also often translated as "before". Learn more about the difference between "antes" and "ante" below.
antes(
ahn
-
tehs
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (time)
2. (location)
a. before 
Descubrí quién era el asesino diez páginas antes del final.I discovered who the murderer was ten pages before the end.
Me bajo una parada antes que la tuya.I get off one stop before yours.
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
3. (preference)
An adjective is a word that describes a noun (e.g., the big dog).
4. (precedent)
a. before 
Tenemos que preparar la reunión el día antes.We have to prepare the meeting the day before.
ante(
ahn
-
teh
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
a. before 
El acusado se declaró no culpable ante el tribunal.The accused pleaded not guilty before the court.
2. (faced with)
a. in the face of 
Tienes que crecerte ante la adversidad para tener éxito a largo plazo.You have to grow stronger in the face of adversity to succeed in the long run.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
4. (animal)
a. moose  (North American species)
Los antes son los cérvidos más grandes.Moose are the largest members of the deer family.
b. elk  (European species)
Las astas de los antes pueden elevarse 1.2 metros por encima de sus cabezas.Elk antlers can extend 1.2 meters above their heads.
5. (material)
a. suede 
Con este vestido de ante rojo, parezco Papá Noel.Wearing this red suede dress, I look like Santa Claus.