Definitions of tilt:

• noun:   the property possessed by a line or surface that departs from the vertical

  Example: "The tower had a pronounced tilt"

• noun:   a slight but noticeable partiality

  Example: "The court's tilt toward conservative rulings"

• noun:   a combat between two mounted knights tilting against each other with blunted lances
• noun:   pitching dangerously to one side
• noun:   a contentious speech act; a dispute where there is strong disagreement
• verb:   charge with a tilt
• verb:   to incline or bend from a vertical position
• verb:   heel over

  Example: "The tower is tilting"

• verb:   move sideways or in an unsteady way
• name:  A surname (very rare: popularity rank in the U.S.: #77153)