null

🇬🇧 UK/nʌl/🇺🇸 US
IELTSTOEFLC1

Definitions

adj.

Having no legal force or validity; non-existent or absent

无效的;无法律效力的

n.

An empty or non-existent value, especially in computing; zero

空值;零

v.

To nullify or annul something

使无效;废除

🧩 Root Breakdown

Loanword
nullother
=null

Common Collocations

  • 1.null hypothesis零假设
  • 2.null value空值
  • 3.render null使无效

Example Sentences

  • 1.

    The null hypothesis in statistics assumes no significant difference.

  • 2.

    Setting a variable to null means it contains no value.

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