Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ninja

2 senses of ninja

Sense 1
ninja -- (a member of the ninja who were trained in martial arts and hired for espionage or sabotage or assassinations; a person skilled in ninjutsu)
       => mercenary, soldier of fortune -- (a person hired to fight for another country than their own)

Sense 2
ninja -- (a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations)
       => class, stratum, social class, socio-economic class -- (people having the same social, economic, or educational status; "the working class"; "an emerging professional class")