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"A" is a preposition which is often translated as "to", and "opositor" is an adjective which is often translated as "opposing". Learn more about the difference between "a" and "opositor" below.
a, la a(
ah
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
Podía respirar a duras penas.He was hardly able to breathe.
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
¡A fregar los platos!Go do the dishes!
¡A la cama!Off to bed!
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
Me encantaría ganar dinero a espuertas.I would love to earn lots of money.
Llovía a cántaros.It was pouring.
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
An abbreviation is the shortened form of a word or group of words (e.g., "UFO" = "unidentified flying object"; "p." = "page").
a. A
El circuito transporta una corriente de 1 A.The circuit carries a current of 1 A.
La intensidad de la corriente eléctrica se mide en A.The intensity of an electric current is measured in A.
opositor, el opositor, la opositora(
oh
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poh
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see
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tohr
)An adjective is a word that describes a noun (e.g., the big dog).
a. opposing
Tus argumentos opositores carecen de convicción.Your opposing arguments lack conviction.
b. opposition (politics)
El gobierno llegó a un acuerdo con los partidos opositores sobre la asistencia social.The government reached an agreement with the opposition parties about welfare.
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).
2. (rival)
a. opponent
Los nazis enviaron a sus opositores a campos de concentración.The Nazis sent their opponents to concentration camps.
3. (competitor)
a. candidate
Me eligieron a mí en un concurso de 23 opositores.I was selected in a competition of 23 candidates.