From Longman Dictionary of Contemporary Englishlisplisp /lɪsp/ noun [singular] MISPEAK A LANGUAGEa fault in the way someone speaks which makes them pronounce ‘s’ sounds as ‘th’ She speaks with a slight lisp. —lisp verb [intransitive, transitive]
Examples from the Corpus
lisp• Only in the frankly imitative words like buzz and lisp do hint and pointing coincide.• He had a slight lisp that used to be more pronounced.• Bobbi speaks with a slight lisp.• He spoke with a slight lisp and greeted Louis with respect but without subservience.• Its note had none of the lisp of a flute but was bell-like in its clarity.• The man with the lisp joined him.From Longman Business DictionaryLISPLISP /lɪsp/ noun [uncountable] COMPUTING list processing; a type of computer language used especially in ARTIFICIAL INTELLIGENCEOrigin lisp Old English wlyspian 