vs
QUICK ANSWER
"Si" is a form of "si", a conjunction which is often translated as "if". "Además" is a form of "además", an adverb which is often translated as "besides". Learn more about the difference between "si" and "además" below.
si(
see
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
además(
ah
-
deh
-
mahs
)