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"Prevent" is a transitive verb which is often translated as "prevenir", and "avoid" is a transitive verb which is often translated as "evitar". Learn more about the difference between "prevent" and "avoid" below.
prevent(
pruh
-
vehnt
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
avoid(
uh
-
voyd
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).