the act of providing approval and support | the procedure of calculating; determining something by mathematical or logical methods |
(computer science) a copy of a file or directory on a separate storage device | the branch of engineering science that studies (with the aid of computers) computable processes and structures |
a musical part (vocal or instrumental) that supports or provides background for other musical parts | |
someone who takes the place of another (as when things get dangerous or difficult) | |
an accumulation caused by clogging or a stoppage | |