Add up

What is Add up?

Add up definition and meaning on Dictionary terms:
verb (used with object)
to unite or join so as to increase the number, quantity, size, or importance: to add two cups of sugar; to add a postscript to her letter; to add insult to injury.
to find the sum of (often followed by up): Add this column of figures. Add up the grocery bills.
to say or write further.

to include (usually followed by in): Don’t forget to add in the tip.

verb (used without object)
to perform the arithmetic operation of addition: children learning to add and subtract.
to be or serve as an addition (usually followed by to): His illness added to the family’s troubles.

Journalism. copy added to a completed story.