Definiciones
1.Nounfeminine of uno"a la una, a las dos y a las tres"
2.Articlefeminine singular of un
3.Determinerfeminine singular of uno
4.Pronounone (an indefinite plural pronoun using a singular feminine item, used for females)
5.Verbinflection of unir:
first/third-person singular present subjunctive
third-person singular imperative
6.Verbfirst/third-person singular present subjunctive
7.Verbthird-person singular imperative