You can find definition of aa below. Words can have several meanings depending on the context. Their meaning may vary depending on where they are used. Please choose approriate definition according to part of speech and context. We have found 3 different definitions of aa. aa is a 2 letter word. It starts with a and ends with a.
a dry form of lava resembling clinkers
an international organization that provides a support group for persons trying to overcome alcoholism
an associate degree in arts