12-letter words containing h, i, g, l, o
- wolf herring — a voracious clupeoid fish, Chirocentrus dorab, inhabiting the tropical Indian and Pacific oceans.
- wood's light — ultraviolet light filtered through glass containing nickel oxide, used in detecting forgeries, in detecting microbes in hair, etc.
- yellow light — a yellow traffic light, usually preceding a signal halting traffic in a particular direction.
- zhang zuolin — Chang Tso-lin.