Third-person singular simple present indicative form of lean

(aviation, with the) A dangerous sensory illusion where the pilot of an aircraft believes themself to be in a bank when they are actually wings-level, or vice-versa, often resulting in spatial disorientation and loss of control of the aircraft.

Third-person singular simple present indicative form of lean in

Third-person singular simple present indicative form of lean into

plural of Lean

Third-person singular simple present indicative form of lean on

To thin out (a fuel-air mixture): to reduce the fuel flow into the mixture so that there is more air or oxygen.

(uncountable) Meat with no fat on it. / (countable, biology) An organism that is lean in stature.

To conceal.

simple past tense and past participle of lean