safety razor

Synonym of シートベルト (shīto beruto, “seat belt”); a safety belt

(euphemistic) security camera

(mahjong) a tile that one can safely discard, as it cannot become an opponent's advantage / (slang, by extension) a safe choice

(government, military, economics, diplomacy) security

(offensive, Internet slang) a man whose age is greater than about thirty or forty who lives in one's child room and with one's parent(s).

safety first

Short for 国家安全保障会議 (Kokka Anzen Hoshō Kaigi, “National Security Council”).

Short for 国際連合安全保障理事会 (Kokusai Rengō Anzen Hoshō Rijikai, “United Nations Security Council”); short for 国連安全保障理事会 (Kokuren Anzen Hoshō Rijikai, “UN Security Council”); the Security Council

(of various countries) the National Security Council