v.
Pronunciation: ' au ̇ st
Function: transitive verb
Etymology: Middle English, from Anglo-French oster, ouster to take off, remove, oust, from Late Latin obstare to ward off, from Latin, to stand in the way, from ob- in the way + stare to stand ― more at OB- , STAND
Date: 15th century
1 a : to remove from or dispossess of property or position by legal action, by force, or by the compulsion of necessity b : to take away (as a right or authority) : BAR , REMOVE
2 : to take the place of : SUPPLANT
synonyms see EJECT