Usually means: Basic program demonstrating output functionality.
Definitions Related words Mentions
We found 10 dictionaries that define the word Hello World:

General (4 matching dictionaries)
  1. hello-world: Wordnik
  2. Hello World: Wiktionary
  3. hello, world, hello world: Dictionary.com
  4. Hello World (Information Society album), Hello World (Scandal album), Hello World (disambiguation), Hello World (film), Hello World (song), Hello World, Hello world: Wikipedia, the Free Encyclopedia

Computing (4 matching dictionaries)
  1. hello, world: Free On-line Dictionary of Computing
  2. Hello World: Computer Telephony & Electronics Dictionary and Glossary
  3. Technopedia (No longer online)
  4. Hello, World: Encyclopedia

Medicine (1 matching dictionary)
  1. online medical dictionary (No longer online)

Slang (1 matching dictionary)
  1. hello, world, hello world: Urban Dictionary

Definitions from Wiktionary (Hello world)

noun:  (programming) A simple script or program designed to output the text "Hello World" as a demonstration of the computer language or environment.
noun:  (programming, by extension) A simple first program for any purpose.
noun:  Alternative form of Hello World. [(programming) A simple script or program designed to output the text "Hello World" as a demonstration of the computer language or environment.]

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