Definition of "ninja" in Englisch

noun

1. (martial arts) A person trained in ninjutsu, especially (historical) one used for espionage, assassination, and other tasks requiring stealth during Japan's shogunate period.

   • He used to work in the Japanese agency as a ninja.

2. (figurative) A person considered similarly skillful to the historical ninja, especially in covert or stealthy operation.

3. (figurative) A person considered to look like the historical ninja in some way, including (historical slang) an amateur private miner in Mongolia.

4. (euphemistic, African-American Vernacular) Synonym of nigga as a friendly term of address.

5. (euphemistic, vulgar, derogatory, offensive, ethnic slur) nigger.

adjective

1. Of or related to ninjas in their various senses.

verb

1. (ambitransitive) To act or move like a ninja, particularly with regard to a combination of speed, power, and stealth.

2. (Internet slang) to beat someone to a post; to make the same reply just before the other party finishes typing, making their response redundant.

   • When I hit post, I saw that Blue Emu had ninja'd me, so I just deleted my reply.

3. (online gaming slang) To claim an item through abuse of game mechanics.

   • That damn warrior ninja'd an epic-quality wand even though he can't even use it!