add up

verb

added up; adding up; adds up

intransitive verb

1
a
: to come to the expected total
the bill doesn't add up
b
: to form an intelligible pattern : make sense
her story just doesn't add up
2
a
: amount sense 1b
used with to
the play adds up to a lot of laughs
b
: to amount to a lot
just a little each time, but it all adds up

transitive verb

: to form an opinion of
added him up at a glance

Examples of add up in a Sentence

whether we take the 4:00 train or the 4:15 bus, it adds up to the same thing: they both get us back too late even if we pool all our money, it won't add up to enough to rent a beach house for a week
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
By the end of the year, those small indoor air quality solutions can add up to a healthier home and healthier lungs for the entire family. Ryan Brennan may 19, Miami Herald, 19 May 2026 The combination of extreme heat and widespread drought could add up to a higher-than-average risk of wildfire, especially in the Southwest, Southern Plains and Central High Plains, as well as the Deep South and Southeast. Adam Kovac, Scientific American, 19 May 2026 Testing, fittings, adjustments, follow-up appointments, and replacement costs can add up quickly, especially for people who need more advanced support than over-the-counter products can provide. Matthew Kayser, Sacbee.com, 18 May 2026 Aged White Cheddar Cheese Aged white Cheddar cheese is a staple in many refrigerators, but the cost of high-end cheese can add up. Kait Hanson, Southern Living, 18 May 2026 See All Example Sentences for add up

Word History

First Known Use

1850, in the meaning defined at intransitive sense 2

Time Traveler
The first known use of add up was in 1850

Browse Nearby Words

Cite this Entry

“Add up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/add%20up. Accessed 21 May. 2026.

Kids Definition

add up

verb
1
a
: to come to a total and especially the expected total
b
: to make sense
her story just doesn't add up
2
: to amount to a lot
just a little each time, but it all adds up

More from Merriam-Webster on add up

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster