add up Meaning in the Cambridge English Dictionary
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Meaning of “add up” in the English Dictionary

"add up" in American English

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add up

phrasal verb with add  us   /æd/ verb [I/T]

add up (INCREASE)

to ​increasegradually until there is a ​largeamount: The ​changes in ​airquality are ​small, but after a while they do add up and ​affect people's ​health.

add up

phrasal verb with add  us   /æd/ verb [I/T]

add up (BE REASONABLE)

to ​seemreasonable or ​likely: Watson ​claimed he was at ​home at the ​time of the ​murder, but ​police said his ​story didn't add up.
(Definition of add up from the Cambridge Academic Content Dictionary © Cambridge University Press)

"add up" in Business English

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add up

phrasal verb with add uk   us   /æd/ verb [T]
[T] to ​calculate the ​total of two or more ​prices, ​numbers, etc.: He quickly ​added up the ​figures in his ​head.
[I] to gradually ​increase until there is a large ​total: The ​fees were ​adding up.
(Definition of add up from the Cambridge Business English Dictionary © Cambridge University Press)
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