Word: 警戒 (jǐngjiè) 警戒 dictionary entry jǐngjiè to warn; to alert; to be on the alert; to stand guard; sentinel Full dictionary entry for 警戒 Example sentences using 警戒 2 sentences, showing page 1 of 1. 士兵整夜在桥头警戒。 Shìbīng zhěngyè zài qiáotóu jǐngjiè. The soldiers stood guard at the end of the bridge all night. 暴雨将至，河边已开始警戒。 Bàoyǔ jiāng zhì, hébiān yǐ kāishǐ jǐngjiè. With heavy rain coming, the riverside has been put on alert.