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"Costa" is a form of "costa", a noun which is often translated as "coast". "Mención" is a noun which is often translated as "mention". Learn more about the difference between "mención" and "costa" below.
la mención(
mehn
-
syohn
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. mention
En las instrucciones, no hay mención de la fuente de alimentación que debe utilizarse.In the instructions, there's no mention of the power supply that should be used.
la costa(
kohs
-
tah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. coast
Van a la costa en el verano cuando hace calor en el interior.They go to the coast in the summer when it gets hot inland.
b. shore
Los niños se divirtieron jugando en la costa del lago Michigan.The children had fun playing on the shore of Lake Michigan.
c. bank
Fuimos a la hermosa ciudad de San Isidro en la costa del Río de la Plata.We went to the beautiful city of San Isidro on the banks of the La Plata River.