(cricket) A statistical estimation of the scoring ability of a batsman; equal to the total number of runs scored divided by the number of times out.

A river in Wiltshire and Somerset, England; running from Acton Turville into the Bristol Channel at Avonmouth.

(simile) To evade or shun, if at all possible.

(dated) A female aviator.

Expressed as a measure of central tendency (usually the arithmetic mean). / (idiomatic) Usually, typically; as a rule; as often as not.

An open declaration of affirmation or admission of knowledge.

An avenue in Manhattan, New York, known as the center of the American advertising industry. / (by extension) The American advertising industry, regardless of location.

(pharmacology) The quality of being efficacious when taken by mouth (usually of a medicinal drug).

(aviation) The science and technology of the development and use of electrical and electronic devices in aviation. / (aviation) The devices used in avionics.

Abbreviation of average.