noun.
The act denoted by the verb tilt, in seismology, any motion of the earth's crust which produces an inclination of objects from the vertical position.
the GNU version of the Collaborative International Dictionary of English
noun.
The act of one who tilts; a tilt.
noun.
The process by which blister steel is rendered ductile by being forged with a tilt hammer.
noun.
a helmet of large size and unusual weight and strength, worn at tilts.