Definite articles in Spanish (el, la, los, las) are equivalent to the English word "the" and are used with specific or known nouns. Indefinite articles in Spanish (un, una, unos, unas) are equivalent to the English words "a" or "an" and mean a nonspecific or unknown noun. Un and una are singular indefinite articles while unos and unas are plural indefinite articles. Together, the definite and indefinite articles in Spanish identify whether nouns are specific or not and whether they are singular or plural.

1. Definite and Indefinite
Articles
P. 60
Realidades 1

2. Definite Articles
xEl , La , Los and Las are
called definite articles.

3. Definite Articles
xIn English they mean “the”

4. Definite Articles
xWe use El and Los with
masculine nouns and La
and Las with feminine
nouns.

5. Indefinite Articles
xUn, Una, Unos, and Unas
are indefinite articles.

6. Indefinite Articles
xUn and Una mean
“a or an” in English.

7. Indefinite Articles
xUnos and Unas mean “some”
in English.

8. Indefinite Articles
xUnand Unos are
masculine and Una and
Unas are feminine.