(US) Any select-fire firearm that allows semi-automatic and fully automatic operation, and is used or was once used by a military organization.

Often used other than figuratively or idiomatically: an assault that is verbal. / (US, law) Oral or written speech that creates, or is intended to create, a fear of physical harm.

(slang) an assault operation, performed in a confined tube-like space (mostly inside vehicles, like trains, airliners, buses, coaches etc.), usually for rescuing of hostages.

(law, idiomatic) The combination of two violent crimes: assault (the threat of violence) and battery (physical violence). This legal distinction exists only in jurisdictions that distinguish assault as threatened violence rather than actual violence.

plural of assault rifle

(US criminal law) Assault with disregard for the value of life, or with a deadly weapon.

A physical attack of a sexual nature on another person or a sexual act committed without explicit consent.

(criminal law) Sexual contact with another person, who does not want it, that does not result in, or is not considered to be, rape.

plural of assault weapon

A path for running, with a series of obstacles such as nets and walls, used for military training.