Answer: stacking

AnswerCrossword Clue
STACKINGAir traffic controller s task
STACKINGPiling up
STACKINGWarehouse task
stackingarrange or fix so as to make a particular result likely the odds are stacked against us will stack juries to suit themselves Patrice Horn
stackingassign (an airplane) by radio to a particular altitude and position within a group circling before landing
stackingput into a waiting line another dozen rigs are stacked up and waiting P. H. Hutchins, Jr.
stackingform a stack
stackingpile in or on stacked the table with books stack the dishwasher
stackingarrange secretly for cheating stack a deck of cards
stackingthe act of stacking
stackingto arrange in a stack pile