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"El" is a form of "el", a definite article which is often translated as "the". "Peor" is an adjective which is often translated as "worse". Learn more about the difference between "el" and "peor" below.
el(
ehl
)A definite article is a word that identifies a noun as specific or known to the speaker (e.g., the girl).
peor(
peh
-
ohr
)An adjective is a word that describes a noun (e.g., the big dog).
1. (bad)
a. worse (comparative)
Este sistema operativo es peor que el anterior.This operating system is worse than the previous one.
b. worst (superlative)
Es el peor libro que he leído últimamente.It's the worst book I've read lately.