leetspeak

L1E1E1T1S1P3E1A1K5
/ˈliːt.spiːk/

noun

A form of chatspeak characterized most strongly by its alphanumeric substitutions.

Scrabble 15

Meanings

nounleetspeak (uncountable)

alternative leetspeek · alternative l33tspeak · alternative l33t5p34k · alternative 1337speak · alternative 13375p34k

  1. InternetuncountableA form of chatspeak characterized most strongly by its alphanumeric substitutions.

    Murg is God [It's "/\/\U|>,g 15 g4\/\/D" in l33tsp33k]

    1997 June 12, KaFRoKa, “Re: Another new cascade!”, in alt.games.final-fantasy (Usenet), retrieved 15 Jul 2016, message-ID <5npiei$lrn$1@thor.atcon.com>
    2 more examples

    well, after all i am a student of languages... which lets me peek into sociology now and then. i haven't studied the 'leet guys very much, but it seems to me that as they all understand their form of "communication", the main purpose (ie separating themselves as a group from the mainstream) is successful. especially as it is almost impossible to understand leetspeak at first.

    1996 May 7, Thomas Weigle, “Re: Realmz Scenario Summary”, in comp.sys.mac.games.adventure (Usenet), retrieved 15 Jul 2016, message-ID <thomas.weigle-0705961754080001@dialup96-1-16.swipnet.se>

    People associate "l33t-speak" with hackers, so when new hackers start to get into the scene they assume they need to write like that, which perpetuates the belief that hackers use l33t-sp34k.

    1998 May 24, Ben Cantrick, “Re: Abuse of alphanumerics. Why do haX0r d00dz do it?”, in alt.2600 (Usenet), retrieved 15 Jul 2016, message-ID <6k9pf8$f5o@peabody.colorado.edu>

Origin

From leet + -speak; the former element is from elite, respelled according to leetspeak conventions.

Full word history & related roots →
Cite this entry
APA

leetspeak. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/leetspeak

MLA

“leetspeak.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/leetspeak. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “leetspeak,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/leetspeak.

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