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1. A speech defect or mannerism characterized by mispronunciation of the sounds (s) and (z) as (th) and (th).
2. A sound of or like a lisp: "The carpenter['s] ... plane whistles its wild ascending lisp" (Walt Whitman).
v. lisped, lisp·ing, lisps
1. To speak with a lisp.
2. To speak imperfectly, as a child does.
To pronounce with a lisp.

[From Middle English lispen, to lisp, from Old English -wlyspian (in āwlyspian, to lisp), from wlisp, lisping.]

lisp′er n.


One of the first high-level programming languages, designed to handle complex data structures. It is widely used in artificial intelligence research.

[lis(t) p(rocessing).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lisper - a speaker who lisps
speaker, talker, verbaliser, verbalizer, utterer - someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous); "the speaker at commencement"; "an utterer of useful maxims"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Meanwhile, another seasonal durian seller along the Serian-Kuching main road Eden Lisper, 28, told this writer that his durians come from his family orchard located at a nearby mountain.
Meanwhile, one-trick gay lisper Louie Spence recalled dancing with Ray Charles and Stevie Wonder.
Image: Flamboyant lisper Best known for: Presenting the BBC One chat show Friday Night with Jonathan Ross during the 2000s.
NONAGRAM: bier; bile; blip; bluish; bruise; bushier; busier; heir; hire; hubris; isle; lieu; lisp; lisper; peri; peril; perish; pier; pile; pish; prise; pubis; publish; PUBLISHER; pushier; relish; riel; rile; ripe; rise; ship; shire; sire; slip; spiel; spile; spire; uprise.
He was the obese, club-footed lisper to whom men and women in several countries offered themselves with abandon.