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illusive  | 
        
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a. Syn. deceptive; misleading deceptive; misleading; based on or having the nature of an illusion  | 
        
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imagery  | 
        
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n. Syn. image ability to form mental images of things or events; figurative writing  | 
        
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impediment  | 
        
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n. Syn. hindrance; obstacle any structure that makes progress difficult; stumbling-block  | 
        
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impose  | 
        
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v. Syn. demand; force; inflict demand; force; compel to behave in a certain way  | 
        
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imprisonment  | 
        
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n. Syn. confinement; incarceration confinement; putting someone in prison or in jail as lawful punishment  | 
        
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improvise  | 
        
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v. Syn. extemporize compose, perform, or do something with little or no preparation  |