One- word substitutions

•  A traitor who can sell out even his fried = Judas
• Exclusive control or possession of any one thing= Monopoly
• A medley or heterogeneous mixture of great variety = Potpourri
• A language of  a region  having its own usage =  Dialect
• An airplane with one pair of wings = Monoplane
• A loud mouthed turbulent kind of woman = Virago
• An embarassing  kind of mistake =A faux pas
• One who is interested in the welfare of other people =Altruist
• To relax in the countryside far away from the humdrum of town - Rusticate
• A tendency to put off events/postpone events =Procrastinate
• One who gets pleasure on others' trouble and pain = Sadistic
• One who looks at everything from a personal point of view = Egocentric