mail directly sent to an individual for advertising

plural of Advent calendar

(biology) The characteristic of an organism that enables it to survive and reproduce better than other organisms in a population in a given environment; the basis for evolution by natural selection.

(economics, business, insurance) The process by which the price and quantity of goods or services in a given market is altered due to one party having information that the other party cannot have at reasonable cost.

plural of adverbial participle

A consumer fraud that involves obtaining a relatively small amount of money from the victim in advance of some large deferred benefit, such as a job, a high rate of return, or a share of embezzled money.

(economics) The capability to produce more of a given product using the same quantity or less of a given resource than a competing entity.

(uncountable) The state of adverse conditions; state of misfortune or calamity. / (countable) An event that is adverse; calamity.

plural of adverse witness

(law) The opposing party in a lawsuit under an adversary system of law; adversary.