def

D2E1F4
/dɛf/

adjective

Excellent; very good.

“i can def sneak out tn. where should i meet u?”

CommonScrabble 7

Meanings

def1

noundef (countable and uncountable, plural defs)

plural defs

  1. abbreviationclippingcountableClipping of definition.

    In that case Wills, J., adopted a dictionary def of “Cowkeeper” as, “one whose business it is to keep cows,” and added, “the business of a Cowkeeper is a special business of its own.”

    1903, F[rederick] Stroud, The Judicial Dictionary, […], 2nd edition, London: Sweet and Maxwell; Stevens and Sons, page 454
    1 more example

    The Black Books also reflect [Philip Babcock] Gove’s notoriously brusque manner, no doubt gained from an early career in the Navy. Memos begin, “Editorializing has no place in definitions,” or “Godlove’s psychophysical defs of color names and their references had better be regarded as sacrosanct.” Sir, yes, sir!

    2017, Kory Stamper, Word by Word: The Secret Life of Dictionaries, New York, N.Y.: Pantheon Books, →ISBN, page 104

    Synonyms: def.

  2. abbreviationclippingcountableClipping of deficit.
  3. abbreviationclippinguncountableusuallyroleplaying gamesClipping of defence /defense.

    5 def for each D6 seems over balanced and I also usually end up with the other defence (PD if you concentrate on ED and vice versa) being pitifully low.

    1998 January 30, Christopher Weber, “Balancing attacks with defence in hero ...”, in rec.games.frp.super-heroes (Usenet)
    2 more examples

    My necro was wearing Arctic Furs (def 45), Pelta Lunata (def 44), cap (def 4) and cracked sash (def 1) giving defence rating of exactly 100, or a 9% chance of being hit by a level

    2000 November 5, paul, “A new one every day”, in alt.games.diablo (Usenet)

    that's fine if you can get an ally to aid you, or the enemy defs are moderate in level, but the cost of a solo one year kill in the late BB/nub era is osbscene.

    2001 October 18, Daniel Neely, “bomber design”, in rec.games.computer.stars (Usenet)
adverb
  1. abbreviationclippingslangClipping of definitely.

    i can def sneak out tn. where should i meet u?

    3 more examples

    And focus on cleaning the park. But we should def get waffle fries after.

    2022 Barbie: It Takes Two, episode 7 “Start Small“ at 15 minutes, Malibu to Brooklyn

    Not to toot our own horn, but we def had Austin Powers on VHS. This fun pop culture costume for couples may require some planning in advance to come up with these unique costumes, but trust us—it’ll pay off!

    2023 September 19, Chaise Sanders, “50 Best Halloween Costumes of All Time, From the Classics to the Truly Unique”, in Cosmopolitan

    While deets on her earnings aren't really public, we can def assume that Billie raked in a ton of dough from her Nike deal alone since each pair retails for a decent amount of $$$.

    2024 September 4, Mehera Bonner, Samantha Olson, “Behold, A Breakdown of Billie Eilish's Massive Net Worth”, in Cosmopolitan

    Synonyms: deffo

def2

adjectivedef (comparative deffer, superlative deffest)

comparative deffer · superlative deffest

  1. slangAfrican-American VernacularExcellent; very good.

    You real def. I’m gonna put you on stage.

    1985, Ralph Farquhar, Krush Groove, spoken by Run (Joseph Simmons)
    3 more examples

    See I do this thing, so come pursue this king / One minor rhyme is all you just bring / Cause I’m the best I’m def, ask the rest they left

    1988, “Run’s House”, in Tougher Than Leather, performed by Run-DMC

    L.A.—The Second Deffest City of Hip-Hop [title]

    1988 February 7, Carly Darling, “L.A.—The Second Deffest City of Hip-Hop”, in Los Angeles Times

    I’m a Flavor Unit MC / And that means I’m one of the roughest, def-est, toughest, best-est

    1993, “Bring The Flavor”, in Black Reign, performed by Queen Latifah

    Synonyms: ace, admirable, amazing, awe-inspiring, awesome, badass, broyal, bang on

DEF3

nounDEF (countable and uncountable, plural DEFs)

plural DEFs

  1. abbreviationcountableuncountableautomotiveAbbreviation of diesel exhaust fluid.
  2. abbreviationcountableinitialismuncountableroleplaying gamesInitialism of defence point.
  3. abbreviationcountableinitialismuncountablebroadcastingInitialism of daily electronic feed.
  4. abbreviationcountableinitialismuncountablebroadcastingInitialism of delayed electronic feed.

Synonyms & antonyms

Origin

def · noun, adverb

Clippings.

Full word history & related roots →

def · adjective

Clipping of definitive or definitely; alternatively an eye spelling of death referring to an absolute.

Full word history & related roots →

Rhymes & wordplay

Rhymes with def

All rhymes →

Sounds the same

Anagrams

Cite this entry
APA

def. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/def

MLA

“def.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/def. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “def,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/def.

Source: def on Wiktionary, CC BY-SA 4.0.