11-Letter Words Containing: O,A,M,P,E,R,E

• with little or no preparation or forethought

• a payment larger than needed or expected

• the act of paying too much

• an order of insects including: bees; wasps; ants; ichneumons; sawflies; gall wasps; etc.

• a dramatic or musical entertainment

• the act of presenting a play or a piece of music or other entertainment

• the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it

• any recognized accomplishment

• process or manner of functioning or operating

• a scientist who studies the growth and density of populations and their vital statistics

• a sedative and tranquilizer (trade name Miltown and Equanil and Meprin) used to treat muscle tension and anxiety