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Use "add on" in a sentence
"Fly over to Rio, and the spicy Latinas along Copacabana beach simply grab it in white to layer atop their swimsuit of the day; add on a pale short-short and a metallic Havaianas flip-flop."
"It grew so much that we had to add on to it to accommodate additional- membership."
"Unfortunately, organisms will cheat if merit is proportional to the full genome length—they will add on unexecuted and uncopied code to their genomes creating a code bloat."