(US, military) Initialism of Defense Intelligence Agency. / (Canada, historical) Initialism of Department of Indian Affairs. / (US, aviation) Initialism of Denver International Airport.

A beta-adrenergic blocking drug.

(uncountable) The science of planting and growing trees in forests. / (uncountable) The art and practice of planting and growing trees in forests.

Obsolete form of Oenanthe.