difference - a disagreement or argument about something critical; "he experienced a dispute together with his wife"; "there were irreconcilable differences"; "the acquainted conflict between Republicans and Democrats" These nouns refer to a lack of correspondence or arrangement. Difference is easily the most basic: differences in colour and size; https://thermal-cycling-for-aeros57891.theobloggers.com/42051272/best-practices-for-thermal-shock-testing-things-to-know-before-you-buy