(colloquial) efficient because of having nothing in excess of what is needed, and single-minded in one's objective

Used other than figuratively or idiomatically: see lean, towards. / (transitive) To favor in a decision.

(archaic) Lacking in sense or shrewdness.

plural of lean-to

An item of furniture like a flat bench, but positioned at a vertical diagonal, and often with attached arm-rests. Popularized in the early era of Hollywood film, where they allowed actresses in elaborate costumes to rest without becoming disheveled.

plural of lean client

(computing) Synonym of thin client

A type of log structure with a single sloping roof, used in the Adirondacks as a camping shelter.

Of or relating to the burning of fuel with an excess of air in an internal combustion engine.

Alternative form of lean-burn.