LISP

Parentheses-heavy programming language

LISP is a programming language developed in the late 1950s, one of the oldest still in use.

The name stands for "list processing," reflecting its design around linked lists as a core data structure.

LISP pioneered concepts central to modern programming: recursion, garbage collection, and treating code as data.

It became the dominant language for artificial intelligence research and remains influential, with dialects like Common Lisp and Scheme still actively used. (Lowercase lisp is a speech impediment.)

syntax

parentheses

Curved enclosing punctuation marks

lists · car · cons · quote · eval · read · print · balanced · delimiters

language

dialect

Regional language variety

macros · McCarthy · MIT · interactive · extensible

functional

lambda

Eleventh Greek letter

reduce · filter · immutability · continuation · apply · let · composition

speech

sibilant

Fricative with hiss quality

frontal · interdental · therapy · fricative

concepts

unquote

Verbal closing quotation mark

Opposites
programming paradigm

LISPmachine code

CPU-executable binary instructions

C · COBOL · binary code · C++ · Java

speech impediment

LISPclear speech

Understandable spoken language

eloquence

Family

lisping, lisped, lisper, lispingly

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Rated G