difference /ˈdɪfrəns/ noun
plural differences
plural differences
Learner's definition of DIFFERENCE
: the quality that makes one person or thing unlike another
◊ To tell the difference between two people or things is to see how they are unlike each other.
[count] : something that people do not agree about : a disagreement in opinion
[count] : the degree or amount by which things differ

make a difference

: to cause a change : to be important in some way
: to do something that is important : to do something that helps people or makes the world a better place

same difference

chiefly US, informal
used to say that two things are not really different in any important way

split the difference

see 1split

what's the difference?

used to ask how one thing is different from another
or what difference does it/that make? used to ask why something is important or to suggest that something is not important