abbr. JEM（Justice and Equality Movement）：正义与平等运动（苏丹达尔富尔地区的政治与武装运动组织）；JEM（Japanese Experiment Module）：日本实验舱（国际空间站的日本舱段）；JEM（Job Element Method）：工作要素法；JEM（日本电器制造者协会标准）
n. Jem：（英）人名，杰姆（多作男子教名 James 的昵称，文学作品中亦用作 Jeremy 的昵称）
n.a terrorist organization founded in 2000; a militant Islamic group active in Kashmir and closely aligned with al-Rashid Trust; seeks to secure release of imprisoned fellow militants by kidnappings
Fighting continues in the region despite the JEM and local government signing a "goodwill and confidence-building" agreement earlier in February, according to the U.N.