A large floating mass of ice; pack ice. / A pack of crushed ice applied to the body in order to reduce pain or inflammation.

A large consolidated mass of floating sea ice.

(bodybuilding) An exceptionally well-developed set of abdominal muscles in which eight distinct portions of muscle are visible.

(aviation) A piece of equipment that may be strapped to a person’s back and generate vertical thrust by a downward discharge of jet fluid, thereby rendering the person capable of flight.

simple past tense and past participle of vacuum-pack

Packed in an airtight container in a partial vacuum.

plural of pack-horse

(Typically with regard to furniture) able to be constructed from flat pre-cut sections. / (by extension) easily constructed from pre-produced components.

(Typically with regard to furniture) the pre-cut kit of sections used to make a piece of furniture.

A bag containing gifts and promotional material handed out at a conference, exhibition, or similar event. / (marketing) A small ("fun-size") package of snacks etc.