sentinel UK ['sen.tɪ.nəl] US [-tˌɪ-] noun countable old use or literary ■a person employed to guard something; a sentry 岗哨;哨兵•A policeman stood sentinel at the entrance.一位员警站在入口处站哨。 ■mainly US ■Sentinel is also used in the names of some newspapers (用于某些报纸名中)•the Fort Lauderdale Sun-Sentinel《劳德代尔堡太阳卫报》 |