add up

US /æd ˈʌp/

UK /æd ˈʌp/

1.

to make sense; to seem reasonable or logical

:

•

His story just doesn't add up.

•

The numbers don't add up, there must be a mistake.

:

make sense cohere be consistent be logical be plausible

2.

to calculate the total of several numbers or amounts

:

•

Can you add up these figures for me?

•

We need to add up the expenses for the trip.

:

calculate total sum tally

:

add up to add add fuel to the fire add insult to injury on the up and up up up to