• niggarly,
• nigras,
• jigga,
• sniggu,
• nugga,
• njgga,
• nkgga,
• n9gga,
• n8gga,
• niggz,
• niggw,
• niggq,
• bnigga,
• nbigga,
• mnigga,
• nmigga,
• jnigga,
• njigga,
• hnigga,
• nhigga

• Nikia,
• Niesha,
• Nicaea,
• nix,
• Nisha,
• Niehaus,
• nigh,
• NIJ.

The adjective form of the word "nigga" is "nigga" itself. However, it is important to note that this term is highly offensive and disrespectful. It originated as a racial slur and is not appropriate to use in most contexts.

The plural form of "nigga" is "niggas"

The singular form of the word "nigga" is still "nigga". However, it is important to note that this term is considered a racial slur, and its usage can be highly offensive and disrespectful.