(colloquial) That which belongs to both of them; the possessive third-person plural pronoun used without a following noun.

(idiomatic) Willingly; readily. / Used other than figuratively or idiomatically: see with, both, hands.

(archaic) A factotum.

Skilled or able to use either hand, with unspecified degrees of equalness; ambidextrous. / Denoting either right-handed or left-handed; either-handed. / For use with both hands or using both hands.

With both hands / Involving two sides or approaches

Using both hands.

Ambidexterity. / The property of involving two sides, approaches, or orientations.

plural of Both respirator

(historical) An early form of iron lung.

(informal, figuratively) The maximum damage that a weapon can deliver.