noun A type of lava having a rough surface
interjection Used to express surprise, triumph, or other strong emotion
In medicine, 'aa' can refer to 'alcoholics anonymous', a support group for individuals struggling with alcohol addiction.
In linguistics, 'aa' refers to a type of vowel sound found in many languages, often characterized as a long, open vowel.
In astronomy, 'aa' is sometimes used as an abbreviation for 'angstrom-angstrom', a unit of measurement for the wavelength of light.
In geology, 'aa' is used to describe a type of volcanic rock characterized by a rough, jagged surface.
In the publishing industry, 'aa' may refer to 'author's alteration', which is a change requested by the author after the manuscript has been submitted.
In psychology, 'aa' may refer to 'Alcoholics Anonymous', a support group for individuals struggling with alcohol addiction.
In the medical field, 'aa' may refer to 'amino acid', which are the building blocks of proteins and essential for various bodily functions.
In software development, 'aa' may refer to 'anti-aliasing', a technique used to smooth jagged edges in graphics.
In accounting, 'aa' may refer to 'adjusting entries', which are journal entries made at the end of an accounting period to update accounts and ensure accuracy.