To incline or deviate from a vertical position or line; deviate from an erect position; take or have an inclining posture or direction; bend or stoop out of line: as, the column leans to the north; the leaning tower of Pisa; to lean against a wall or over a balustrade.To deviate from a straight or straightforward line; turn: as, the road leans to the right.To depend, as for support or comfort: usually with on or upon: as, to lean on one's arm; to lean on the help of a friend.To bow or bend in submission; yield.To incline, as in feeling or opinion; tend, as in conduct: as, he leans toward fatalism.To incline for support or rest.n. Deviation from a vertical position; inclination.Scant of flesh; not fat or plump; spare; thin; lank: as, a lean body.Free from fat; consisting only or chiefly of solid flesh or muscle: as, lean meat; the lean part of a steak.Lacking in substance or in that which gives value; poor or scanty in essential qualities or contents; bare; barren; meager: as, a lean discourse; a lean purse; lean soil; lean trees.Exhibiting or producing leanness.Among printers, unprofitable; consuming extra time or labor.Synonyms Spare, lank, gaunt, skinny, poor, emaciated.n. That part of flesh which consists of muscle without fat.n. Any flesh that adheres to the blubber of a whale: same as fat-lean.n. Among printers, unprofitable work.To become lean.To make lean: as, the climate leans one very soon.In whaling, to remove the Lean or flesh from (blubber) with the leaning-knife.See lain.