JMdict entry #1154260

1. noun (common) (futsuumeishi) abbreviation security (e.g. national security)
   see: 安全保障
2. noun (common) (futsuumeishi) abbreviation US-Japan Security Treaty
   see: 日米安全保障条約
3. noun (common) (futsuumeishi) abbreviation campaign against the Japan-US Security Treaty (1959-60, 1970)
   see: 安保闘争