To combine multiple similar objects into one
Much as America's motto celebrates melding many into one, South Africa's says that it doesn't matter what you look like — we can all be proud of our young country. - The New York Times, 26/02/2007 http//www.nytimes.com/2007/02/27/world/africa/27safrica.html?_r=1&oref=login
In card games, especially of the rummy family, to announce or display a combination of cards.
A composite or hybrid, the result of being melded.