Used other than figuratively or idiomatically: see blind, alley. A street or passageway that leads nowhere.
A course of inquiry that leads nowhere.
The required distance between a structure and a road.
An offset to the temperature setting of a thermostat to cover a period when more or less heating is required than usual.
An obstacle, delay, disadvantage, blow (an adverse event which retards or prevents progress towards a desired outcome)
A step-like recession in a wall.