White-collar, (adjective), English /ˌwaɪtˈkɒl.ər/ us /ˌwaɪtˈkɑː.lɚ/

1. Relating to people who work in offices, doing work that needs mental rather than physical effort.

Shinobi (noun) Japanese 忍び (しのび, shinobi)

1. A male ninja.