surveil

A verb meaning to closely observe or monitor someone or something, often secretly, for the purpose of gathering information.

ruГлагол, означающий тщательно наблюдать или следить за кем-то или чем-то, часто тайно, с целью сбора информации.esVerbo que significa observar o vigilar a alguien o algo de manera cuidadosa y a menudo secreta, con el fin de recopilar información.frVerbe signifiant observer attentivement ou suivre quelqu'un ou quelque chose, souvent secrètement, dans le but de recueillir des informations.deÜberwachen oder Beobachten einer Person oder Sache, oft heimlich und systematisch, um Informationen zu sammeln.ptVerbo que significa observar ou vigiar alguém ou algo atentamente, muitas vezes de forma discreta ou secreta, com o objetivo de coletar informações.zh动词，指对某人或某事物进行严密观察或监视，常为秘密进行，目的是收集信息。arفعل يعني مراقبة شخص أو شيء باهتمام ودقة، غالبًا بسرية، بهدف جمع المعلومات عنه.

1. Keep under surveillance C1 formal

   To closely watch or monitor someone or something, often for security or investigative purposes.

   • The police surveilled the suspect for several weeks.
   • Private investigators often surveil individuals for insurance claims.
   • The government agency surveilled the area using drones.

   ruНаблюдатьesVigilarfrsurveillerdeÜberwachenptVigiarzh监视arالمراقبة

   Synonyme: monitorobserveshadowtailtrackwatch

• surveilled past participle
• surveilled past simple
• surveilling present participle
• surveils third person singular