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"Mas" is a form of "mas", a conjunction which is often translated as "but". "Tanto" is an adverb which is often translated as "so much". Learn more about the difference between "tanto" and "mas" below.
tanto(
tahn
-
toh
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
An adjective is a word that describes a noun (e.g., the big dog).
A pronoun is a word that stands in for a noun (e.g., she).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
mas(
mahs
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
1. (literary) (contrasting)
A word or phrase restricted in usage to literature or established writing (e.g., sex, once upon a time).
a. but
Soy un caballero valiente, mas no soy agresivo.I am a valiant knight, but I am not aggressive.