Abstract: A combination tilt/sash lock for mounting to a window sash rail, the combination including a sash lock and tilt lock being mounted in linear relationship to each other; the tilt lock having a latch element latching to a window frame that is manually movable within a tilt lock housing between a latched position and an unlatched position; the sash lock having a rotatable cam movable by rotating a locking lever between a locked position and an unlocked position; the sash lock locking lever being located in a superimposed linear relationship to and blocking manual movement of the tilt lock in the locked position and allowing movement of the latch element in the unlatched position; and the tilt lock mechanism being movable from a latched position to a disengaged position.