Learner's definition of DISTINCTION
1 [count] : a difference that you can see, hear, smell, feel, etc.: a noticeable difference between things or people
These dogs are different breeds, but this distinction is lost on most people. [=most people do not see a difference between these dogs]
There are no obvious distinctions between the two designs.
distinctions between social classes
She made/drew a distinction between the words “less” and “fewer.”
2 [noncount] : the separation of people or things into different groups
The law should be enforced without distinction as to race, sex, or religion. [=the law should not treat people of different races, sexes, or religions differently]
3 [noncount] : importance, excellence, or achievement
He was raised in a small town of no great distinction.
Her talents gave distinction to the work.
She was a politician of some distinction. [=she was a distinguished politician]
4 : a special honor, recognition, or award
5 [noncount] : the quality that makes a person or thing special or different— + of