11-Letter Words Containing: O,A,S,T,E,R,S

• container for holding implements and materials for work (especially for sewing)

• a tremor (or one of a series of tremors) occurring after the main shock of an earthquake

• a swimming stroke that resembles the crawl except the swimmer lies on his or her back

• swim on one's back

• an organism that feeds on dead organic matter especially a fungus or bacterium

• fortification consisting of a low wall

• A piece done to prove possession of skill sufficient to be ranked a master.

• A piece of quality, indicative of having been made by a master; a masterpiece.

• An act of primary importance.

• A main drain or irrigation channel.

• The previous life and experiences of a person, especially a character in a dramatic work, but also a real-life person.

• A fictitious account of a person's history designed to conceal their actual history and motives.

• A prequel.