Wiktionary
alt. 1 An ancient military weapon, an axe designed for combat. 2 (context heraldry English) This weapon borne on arms as a mark of prowess. 3 (context informal uncommon English) (altspelling battle-ax nodot=1 English), a domineering, antagonistic woman. 4 (context informal English) An electric guitar. 5 (context Australia usually spelt "battleaxe") An allotment of land at the rear of another property, with a long, narrow strip of land connecting it to the roadway. n. 1 An ancient military weapon, an axe designed for combat. 2 (context heraldry English) This weapon borne on arms as a mark of prowess. 3 (context informal uncommon English) (altspelling battle-ax nodot=1 English), a domineering, antagonistic woman. 4 (context informal English) An electric guitar. 5 (context Australia usually spelt "battleaxe") An allotment of land at the rear of another property, with a long, narrow strip of land connecting it to the roadway.
Wikipedia
A battle axe (also battle-axe or battle-ax) is an axe specifically designed for combat. Battle axes were specialized versions of utility axes. Many were suitable for use in one hand, while others were larger and were deployed two-handed.
Axes designed for warfare ranged in weight from just over 0.5 kg to 3 kg ( 1 to 6 pounds), and in length from just over 30 cm to upwards of 1.5 m (1 to 5 feet), as in the case of the Danish axe or the sparth axe. Cleaving weapons longer than 1.5 m would arguably fall into the category of polearms.