How do you use 'esa' in a Spanish-language sentence?

Answer 1

"Esa" is Spanish for "that [female]." For the most part you can use "esa" the same way that "that" is used as an adjective/pronoun in English, just that the object being described has to be female. Here are a few examples:

Esa señora es muy bonita. -- That woman is very pretty.

¿Quién es esa? -- Who is that [female]?

¡Policía! ¡Detengan a esa ladrona! -- Officer! Stop that [female] thief!

However, "esa" can also mean "that [female] one." This meaning of "esa" is only used in sentences where the subject isn't explicitly stated, and whatever "esa" refers to must be determined by context. For example, picture a little boy pointing at a girl across the room, saying:

Me gusta esa. -- I like that [female] one.

Keep in mind, though, that "esa" can only be used as a demonstrative pronoun or adjective -- unlike "that," which can also be an adverb or a conjunction.

Answer 2

'Esa' is a Spanish demonstrative adjective that means 'that' when referring to a feminine singular noun that is relatively far from the speaker and listener. For example, "Esa casa es grande" means "That house is big."