add up

phrasal verb·2 senses·particle up

Usefulness

Meanings

1

Combine into a larger total

Why “up”? Filling to the top. Reaching the upper limit means finishing.

Those numbers don't add up.
Those numbers don't total to what they should.
The receipts add up to 90 euros.
The receipts make a total of 90 euros.
2

Make sense or seem true

Why “up”? You examine the whole situation and judge its value or condition.

His story doesn't add up.
His story does not make sense.
The two emails don't add up.
The two emails do not match, so something seems wrong.

Test yourself

Those numbers don't add up. What does it mean?

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