What does lisp mean?
A lisp is a recognizable speech pattern in which the /s/ sound is articulated imperfectly. It commonly involves replacing /s/ with a dental sound such as /θ/ or /ð/, as in the traditional rendering of “sink” as “think,” although individual patterns vary. The noun refers to the speech feature, while the verb “to lisp” describes speaking in this manner. In general use, the word is often informal rather than clinical, and it can sound reductive or insensitive when applied casually to a person, particularly a child. It remains useful for discussing a specific pronunciation pattern clearly and for describing language use in literature, performance, or everyday conversation. A lisp is distinct from a stammer, which concerns the rhythm and fluency of speech, and from a general difficulty producing speech sounds. The expression is also sometimes used figuratively for conspicuously affected or affected-sounding speech.
A speech pattern in which the /s/ sound is articulated imperfectly, often with /θ/ or /ð/ taking its place.
"The singer concealed his slight lisp with careful diction."
The word can be neutral in technical discussion but should be used respectfully when referring to an individual.
To speak with an imperfect articulation of the /s/ sound.
"He smiled and lisped his agreement through slightly parted lips."
The verb is chiefly intransitive and is often used in literary description or to imitate a manner of speech.
The plural is grammatically regular but uncommon because the word is usually used as an uncountable name for a speech pattern.
"The novel considers how childhood lisps shape its characters' identities."
A lisp gives one of English's simplest sounds—the hiss of /s/—an unmistakable twist.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does lisp come from?
The word is attested in English by the early 17th century, with the noun appearing in forms such as “lispe” and the verb as “lispen.” These forms belong to Middle English, although their deeper linguistic origin is uncertain, so they do not support a confident set of English cognates.
Related word forms
How lisp is actually used
The term is still widely understood but is sometimes considered dated or insensitive when used casually to describe a person. In clinical and educational contexts, more specific language may be preferred.