a Of or relating to the presumed or approximate value, rather than the actual value.
a (context|finance) Of, relating to, or being the amount or face value of a sum of money or a stock certificate, for example, and not the purchasing power or market value.
a (context|finance) Of, relating to, or being the rate of interest or return without adjustment for compounding or inflation.
a (grammar) Of or relating to a noun or word group that functions as a noun.
a (context|engineering) According to plan or design; normal.
a (economics) Without adjustment to remove the effects of inflation; contrasted withreal.
a (statistics|of a variable) Having values whose order is insignificant.
n (grammar) A noun or word group that functions as a noun phrase.
n (grammar) A part of speech that shares features with nouns and adjectives.