S: (n) abort (the act of terminating a project or procedure before it is completed) "I wasted a year of my life working on an abort"; "he sent a short message requesting an abort due to extreme winds in the area"
S: (n) abolition, abolishment (the act of abolishing a system or practice or institution (especially abolishing slavery)) "the abolition of capital punishment"
S: (n) liquidation, settlement (termination of a business operation by using its assets to discharge its liabilities)