- (v.i.) To speak with imperfect articulation; to mispronounce, as a child learning to talk.
- (v.t.) To utter with imperfect articulation; to express with words pronounced imperfectly or indistinctly, as a child speaks; hence, to express by the use of simple, childlike language.
- (v.t.) To speak with reserve or concealment; to utter timidly or confidentially; as, to lisp treason.
- (v.i.) To pronounce the sibilant letter s imperfectly; to give s and z the sound of th; -- a defect common among children.
- (v.i.) To speak hesitatingly with a low voice, as if afraid.
- (n.) The habit or act of lisping. See Lisp, v. i., 1.
- (v.t.) To pronounce with a lisp.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). lisp. Retrieved September 20, 2026, from http://smartdefine.org/lisp/definitions/2028231 |
| Chicago | Webster's. 2011. "lisp" http://smartdefine.org/lisp/definitions/2028231 (accessed September 20, 2026). |
| Harvard | Webster's 2011, lisp, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/lisp/definitions/2028231>. |
| MLA | Webster's. "lisp" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/lisp/definitions/2028231> |