The term 'Leaning to One Side' can be described by two crossword solutions: ALOP (4 letters) and ASLANT (6 letters). ALOP is an acronym for 'At an Angle to the Plane of the Horizon', which means that something is tilted or slanted away from a horizontal or vertical line. ASLANT is an adjective meaning 'slanting or inclined in one direction'. Both words describe the same concept, but ALOP is more technical and scientific while ASLANT is more colloquial.