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"El laboratorio" is a form of "laboratorio", a noun which is often translated as "laboratory". "Tú" is a form of "tú", a pronoun which is often translated as "you". Learn more about the difference between "el laboratorio" and "tú" below.
el laboratorio(
lah
-
boh
-
rah
-
toh
-
ryoh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (general)
a. laboratory
La vacuna se produjo en el laboratorio de investigación de la empresa.The vaccine was developed in the company's research laboratory.
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?).