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"El" is a form of "el", a definite article which is often translated as "the". "Tú" is a form of "tú", a pronoun which is often translated as "you". Learn more about the difference between "el" and "tú" below.
el(
ehl
)A definite article is a word that identifies a noun as specific or known to the speaker (e.g., the girl).
tú(
too
)A pronoun is a word that stands in for a noun (e.g., she).
1. (informal) (second person singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).