What does (aq) mean in chemical equations

I assume it means solution? I know (g) is a gas, (s) is a solid, and (l) is a liquid..

ex:

Copper (s) + Nitric Acid (aq) -> Copper (II) nitrate (aq) + 2 NO2 (g) + 2 H2O

(aq) means aqueous solution :)