WordNet sense 1 ((physics) the angle that a magnetic needle makes with the plane of the horizon):

dip, angle of dip, magnetic dip, magnetic inclination

WordNet sense 2 ((astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees):

inclination of an orbit

WordNet sense 3 ((geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)):

angle of inclination

WordNet sense 4 (an attitude of mind especially one that favors one alternative over others):

disposition, tendency

WordNet sense 5 (the property possessed by a line or surface that departs from the vertical):

lean, leaning, list, tilt

WordNet sense 6 (the act of inclining; bending forward):

inclining