Definition of stack up in English:

stack up

1 (or stack something up) Form or cause to form a large quantity; build up: cars stack up behind every bus, while passengers stand in line to pay fares
More example sentences
  • So I guess it counts for something then; it may not help stack the funds up in the bank account but at least the pressure can come off.
  • In times of extreme deadline crisis, when deadlines are stacked up all around the office like unexploded ordinance, lack of attention to personal hygiene is a professional survival mechanism.
  • It's not even the rainy season - or what we used to qualify as the rainy season, as if we knew anything about it in the first place - but the storms are stacked up out over the Pacific like pool balls on a billiard table and not a pocket in sight.
2North American informal Measure up; compare: our rural schools stack up well against their urban counterparts
More example sentences
  • Find out how your income stacks up compared to the rest of the world.
  • How does your pay stack up… when compared to other facility professionals?
  • I wonder how other state champs would stack up if measured the same way!
2.1 [usually with negative] Make sense; correspond to reality: to blame the debacle on the antics of a rogue trader is not credible—it doesn’t stack up
More example sentences
  • Sorry but what you said just doesn't stack up with the odds.
  • Any way you look at it, the statement just doesn't stack up.
See parent entry: stack

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having a lively, cheerful, and self-confident manner...