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  1. NULL Definition & Meaning - Merriam-Webster

    Null often pops up in legal and scientific contexts; it was originally used in Scottish law and still carries the meaning "having no legal …

  2. Null - Wikipedia

    Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler. This symbol …

  3. Null - Glossary - MDN

    Jul 11, 2025 · In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid …

  4. NULL Synonyms: 135 Similar and Opposite Words - Merriam-Webster

    3 days ago · Synonyms for NULL: void, invalid, null and void, illegal, inoperative, nugatory, nonbinding, bad; Antonyms of NULL: …

  5. NULL | English meaning - Cambridge Dictionary

    NULL definition: 1. having no legal force: 2. with no value or effect: 3. (of a set or matrix) containing nothing…. Learn more.

  6. null - JavaScript | MDN - MDN Web Docs

    Oct 28, 2025 · JavaScript is unique to have two nullish values: null and undefined. Semantically, their difference is very minor: …

  7. A quick and thorough guide to ‘null’: what it is, and how you should …

    Jun 12, 2018 · null is a fundamental concept in many programming languages. It is ubiquitous in all kinds of source code written in …

  8. Null operators in C# - C# | Microsoft Learn

    May 11, 2026 · C# provides several operators that make null-safe code concise. Instead of nesting if (x != null) guards throughout …

  9. SQL NULL Values - IS NULL and IS NOT NULL - W3Schools

    A NULL value represents an unknown, missing, or inapplicable data in a database field. It is not a value itself, but a placeholder to …

  10. NULL Definition & Meaning | Dictionary.com

    NULL definition: without value, effect, consequence, or significance. See examples of null used in a sentence.