add-on

1. 1.

   a software module that extends or enhances the capabilities of an existing application

   Synonymsplug-in

   Broadersoftware
2. 2.

   a component that is added to something to improve it

   “the addition of a bathroom was a major improvement”

   “the addition of cinnamon improved the flavor”

   Synonymsadditionimprover

   Broadercomponent

   Narroweradditiveafterthoughtannexattachmentelongation
3. 3.

   a supplementary component that improves capability

   Synonymsaccessoryappurtenancesupplement

   Broadercomponent

   Narrowerauto accessorycomputer accessoryfittingfixings

Questions about add-on

What does add-on mean?

add-on means "a software module that extends or enhances the capabilities of an existing application". That is the primary sense; the word has 3 in total, listed in full on this page.

How many syllables are in add-on?

add-on has 2 syllables and divides as ad-d-on under the regular spelling rules. It is not in the CMU Pronouncing Dictionary, so that comes from how the word is written rather than from a recorded pronunciation, and no stress or phonetic transcription is claimed for it.

What is another word for add-on?

Close synonyms include plug-in, addition, improver, accessory, appurtenance. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is add-on a common word?

add-on is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.