Used other than figuratively or idiomatically: see au, lieu, de. / instead of

Light brown

white coffee

Port-au-Prince (the capital city of Haiti)

to cry wolf (to raise a false alarm; to constantly warn others about an imagined threat, thereby failing to get assistance when a real threat appears)

milk chocolate / chocolate milk

pain au chocolat (French pastry filled with chocolate)

in the middle of

rum baba

vol-au-vent (puff pastry with a hole)