The phrase "difference in" means the distinction or variation between two or more things or ideas. It refers to the dissimilarity or contrast that exists between them. Full definition
Service learning students find their efforts are valued by peers and society as they discover that they can make differences in positive ways. (hobokencs.org)
And do they create less mental imagery because of differences in how foreign language use affects which memories come to mind? (sciencedaily.com)
However, the design differences underneath the bumper cover can make big differences in how much it costs to repair the vehicles after impacts at low speeds. (iihs.org)