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in the PONS Dictionary

I. null [nʌl] ADJ

1. null:

null
无效的 wúxiàode
null
无束缚力的 wú shùfùlì de

2. null:

null
空的 kōngde
null
为零的 wéilíngde

II. null [nʌl] VB trans

null
使无效 shǐ wúxiào

null [nʌl]

null and void
(法律上)无效的 wúxiàode