vs
QUICK ANSWER
"Si" is a form of "si", a conjunction which is often translated as "if". "Yo entiendo" is a form of "yo entiendo", a phrase which is often translated as "I understand". Learn more about the difference between "si" and "yo entiendo" 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).
yo entiendo(
yoh
ehn
-
tyehn
-
doh
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. I understand
Yo entiendo alemán, pero no puedo hablarlo con fluidez.I understand German, but I can't speak it fluently.