# diff
## English
### Pronunciation

* IPA: /dɪf/
* Audio (General Australian):(file)
* Rhymes: -ɪf

### Noun

diff (plural diffs)
* (slang) Clipping of difference.
    A peach and an apricot? What's the diff?
** 2024 August 29, Ashley Rindsberg, “How Wikipedia Launders Regime Propaganda”, in Pirate Wires‎:MrX provided close to 100 diffs presented in a lengthy brief divided into sections.
* (mathematics) Clipping of differential.
    This function takes that diff and plugs it into the larger structure.
** 1960 March 13, Walt Kelly, Pogo, Sunday, comic strip, →ISBN, page 277:[Pogo:] A woman outthunk is a woman scorned and you know what's got no fury like that! [...] Mus' I tell you? It's Sunday. [Albert:] What's the diff? Tell away. [Pogo, whispering:] Hell.
* (video games, slang) Used to trash-talk an opposing team at the end of a game by pointing out a skill difference between some role and the same role on the other team.
    tank diff (i.e., the deciding factor in the game was the difference in skill between the teams' tank players)
* (computing) Any program which compares two files or sets of files and outputs a description of the differences between them.
* (computing) The output of a diff program, a diff file.
    edit diff
** 2004, Paul Graham, Great Hackers, Essay:I didn't want to waste people's time telling them things they already knew. It's more efficient just to give them the diffs.
* (automotive) Abbreviation of differential: the differential gear in an automobile.
    This diff is capable of locking up when wheel slip occurs.
** 2000, Bob Foster, Birdum or Bust!, Henley Beach, SA: Seaview Press, page 45:Many operators cursed the early diff and driveline set-ups[.]
* (medicine) Abbreviation of differential: differential of types of white blood cell in a complete blood count.
    CBC with diff
** 2006, “Gastroenterology: Esophageal Varices”, in Steven E. Diaz, The Little Black Book of Emergency Medicine (Jones and Bartlett's Little Black Book Series), 2nd edition, Sudbury, MA: Jones and Bartlett Publishers, →ISBN, page 103:Hemoccult emesis and stool, CBC with diff, PT/PTT, type and cross for PRBCs.
* (climbing) A difficult route.
* (fandom slang) Clipping of difficulty.

#### Derived terms

* diff EQ
* diff lock

### Verb

diff (third-person singular simple present diffs, present participle diffing, simple past and past participle diffed)
* (transitive, computing) To run a diff program on (files or items) so as to produce a description of the differences between them, as for a patch file.
** 2011, Gray Hat Hacking : The Ethical Hacker's Handbook‎, 3rd edition, New York: McGraw-Hill, →ISBN, →OCLC, page 484:As we move through this chapter, you will quickly see the benefits of diffing code changes to drivers, libraries, and applications.
* (transitive, computing) To compare two files or other objects, manually or otherwise.
* (transitive, fandom slang) To win a fight against another, with a defined level of difficulty. Usually used when power scaling fictional characters.

#### Derived terms

* diffable
* differ
* high diff
* low diff
* mid diff
* neg diff
* no diff

### Adjective

diff (not comparable)
* Abbreviation of different.
** 2000 August 15, ZedMan2K, “Anti-Leiberman Backlash Already”, in alt.religion.christian.baptist‎ (Usenet):I don't think it's any diff then in grade school when someone said "come on take a drag it will make you look cool"
** 2006 August 25, jes.t.er, “Character names”, in alt.games.warcraft‎ (Usenet):Is there a way to tell it to pick a diff one by default?

### Proper noun

diff
* (computing) A program, historically part of the Unix operating system, which compares two files or sets of files and outputs a description of the differences between them.

### See also

* delta
* patch

### References

* “Diff (Slang)”, in Know Your Meme, website first launched 2007