unos

unos

"Some" or "a few."

The word 'unos' is used as an indefinite article here, meaning 'some'.

Compré unos libros en la tienda.

I bought some books at the store.

In this example, 'unas', the feminine plural form of 'unos', is used to refer to an unspecified amount of streets, again signifying 'some' or 'a few'.

Después de caminar por unas calles, encontramos el museo.

After walking through some streets, we found the museum.

Here, 'unos' indicates an unspecified quantity of birds, equivalent to 'a few' or 'some'.

Vi unos pájaros volando cerca del lago.

I saw some birds flying near the lake.