Definition of quick
                                                                                                    
                                                                    
                                                                    
                                                                                                                 moving quickly and lightly; "sleek and agile as a gymnast"; "as nimble as a deer"; "nimble fingers"; "quick of foot"; "the old dog was so spry it was 
halfway up the 
stairs before we could 
stop it"
                                                                        
 
                                                                    
                                                                                                                 apprehending and responding with 
speed and sensitivity; "a 
quick mind"; "a 
ready wit"
                                                                        
                                                                            (adv) 
                                                                                                                                                         with 
little or no delay; "the 
rescue squad arrived promptly"; "come here, quick!"