9-Letter Words Containing: A,A,L,S,T

• change by catalysis or cause to catalyze

• A system in broadcasting and recording studios that enables the director to communicate with others during performance.

• (by extension) Communication from members of the public to the makers of a broadcast transmission while it is happening.

• a tall staff or pole on which a flag is raised

• a town in north central Arizona; site of an important observatory

• stimulating evacuation of feces

• a mild cathartic

• a sudden violent change in the earth's surface

• an event resulting in great loss and misfortune