Noun
a flexible procedure-oriented programing language that manipulates symbols in the form of lists

Noun
a speech defect that involves pronouncing s like voiceless th and z like voiced th

Verb
speak with a lisp

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 with imperfect articulation; to mispronounce, as a child learning to talk.

v. i.
To speak hesitatingly with a low voice, as if afraid.

v. t.
To pronounce with a lisp.

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.

n.
The habit or act of lisping. See Lisp, v. i., 1.

Lisp

As yet a child, nor yet a fool to fame, I lisped in numbers came.

Lest when my lisping, guilty tongue should halt.

Lisp

To speak unto them after their own capacity, and to lispe words unto them according as the babes and children of that age might sound them again.

Lisp

I overheard her answer, with a very pretty lisp, "O! Strephon, you are a dangerous creature." Tatler.

To pronounce the sibilant letter s imperfectly; to give s and z the sound of th; -- a defect common among children.

To pronounce with a lisp.

The habit or act of lisping. See Lisp, v. i., 1.