Definition

1. Noun:

   • A speech defect: A lisp is a speech impediment characterized by difficulty pronouncing the sounds /s/ and /z/, often substituting them with sounds similar to voiceless and voiced 'th' (as in 'thin' and 'this').
   • A programming language: Lisp is a high-level, functional computer programming language known for its use of symbolic expressions and list processing.

2. Verb:

   • To speak with a lisp: To pronounce the sounds /s/ and /z/ imperfectly, typically with the tongue protruding between the teeth.

Usage Examples

• Noun (Speech Defect): He has a slight lisp, but it doesn't affect his clarity. The speech therapist is helping the child with his lisp.

• Noun (Programming Language): Lisp is a foundational language in the field of artificial intelligence research. The program was originally written in Lisp.

• Verb: Some people lisp when they are very tired. The character in the movie lisps to add a distinctive trait.

Advanced Usage

• "To speak with a lisp": This is the standard phrase to describe someone's manner of speaking.

Variants and Related Words

• Lisping (adj/gerund): The act or quality of speaking with a lisp.

Synonyms

• Speech impediment (general term for a disorder affecting speech clarity).
• Sigmatism (a technical term for difficulty with sibilant sounds like /s/ and /z/).

Related Phrases

• Frontal lisp: A type of lisp where the tongue protrudes between the front teeth.
• Lateral lisp: A type of lisp where air escapes over the sides of the tongue, creating a 'slushy' sound.

Noun

1. a flexible procedure-oriented programing language that manipulates symbols in the form of lists
2. a speech defect that involves pronouncing `s' like voiceless `th' and `z' like voiced `th'

Verb

1. speak with a lisp