mid-14c., from Old French difference (12c.) "difference, distinction; argument, dispute," from Latin differentia "diversity, difference," from differentem (nominative differens), present participle of differre "to set apart" (see differ). Sense of "a quarrel" first attested late 14c. Colloquial phrase what's the diff? first recorded 1896.
1. The difference between who you are and who you want to be is what you do.
2. There has always been a difference between community radio and commercial radio.
3. For a beach resort with a difference, try Key West.
4. The only difference between us is the colour of our skins.
5. Research shows a wide difference in tastes around the country.