Addition
Adding
Synonyms Inclusion, adding in, introduction, adding, incorporation, and insertion.
Adjunct
Synonyms Supplement, adjunct, add-on, accompaniment, rider, increment, appendage, addendum, extra, extension, increase, and augmentation.
Totalling
Synonyms Adding up, totalling, calculation, tallying, totting up, counting, computation, reckoning, summation, and casting up.
Example Sentences
In addition, we need more volunteers.
The addition of sugar improves flavor.
She completed the addition quickly today.