Wordnet 3.0
NOUN (2)
1.
any of the automatic rifles or semiautomatic rifles with large magazines designed for military use;
[syn: assault rifle, assault gun]
2. an armored vehicle with the chassis of a tank (but no turret) and a large gun; used as an antitank weapon and to support infantry;
WordNet (r) 3.0 (2006):
assault gun
n 1: any of the automatic rifles or semiautomatic rifles with
large magazines designed for military use [syn: assault
rifle, assault gun]
2: an armored vehicle with the chassis of a tank (but no turret)
and a large gun; used as an antitank weapon and to support
infantry