Some unspecified thing from a group
Encoding Strategies:
linguistic

alguno
some, any
Used as an adjective to denote some unspecified item from a group.
Necesito algunas ideasI need some ideas
¿Tienes algún libro?Do you have any books?
some, someone, one
Used as a pronoun to refer to an unspecified member of a group.
¿Quieres una manzana? Tengo algunasWant an apple? I have some
Alguno habrá que pueda ayudarThere must be someone who can help
Alguno de ellos lo sabeOne of them knows it
whatsoever, at all (emphatic negation)
Placed after the noun in a negative context to reinforce the negation. If you're negating "some particular one," you're saying "not even one," ruling out every possibility.
No tengo duda algunaI have no doubt whatsoever (I have no doubt, not even some particular one)
No hubo problema algunoThere was no problem at all