Phrasal Verbs Using 'Stack'
Put things in a pile
Example:I STACKED UP the boxes.
Example:Work STACKED UP while I was away on holiday.
Increase, accumulate something
Example:I've been STACKING UP a lot of air miles.
Be logical, make sense
Example:The budget figures don't STACK UP.
Build up the number of planes waiting to land at an airport
Example:Planes were STACKING UP while the airport was closed after the bomb threat.
Be as good as something
Example:The new model doesn't STACK UP AGAINST the old one.