1. add-on - Noun
2. add-on - Verb
a supplementary component that improves capability
a software module that extends or enhances the capabilities of an existing application
make an addition
add to the very end
a component that is added to something to improve it
Source: WordNetadd on
The well-served customer...is an appreciating asset. Every small act on her or his behalf ups the odds of repeat business, add-on business, and priceless word-of-mouth referral. Tom Peters
I like entertainment and think mastery is good, though I don't feel like a master. If a theme means having a story that's legible, then that's certainly what we do. But we don't treat design as an add-on layer. David Rockwell
I, for one, struggle a little bit with a $250,000 education for a philosophy degree. They are a wonderful people, but we can't employ philosophers in manufacturing in the United States. We need a one- or two-year technical add-on for a high school. Douglas R Oberhelman
If you have an impulse, not if you're going to ruin someone elses' scene, if you have an impulse of a funny little add-on or taking something in a weird direction, try it. Rachel Dratch
I can no longer type, so I use TalkingPoint and Dragon Dictate. It's a speech-to-text program, and there's an add-on for talking which some guys came up with. Terry Pratchett
Most films these days are men's stories. Women are for add-on romance. That's very hard. Uma Thurman