As a Noun: 1. A period of time in which the movement of people within or to an area is limited because of public health or safety reasons. English = lockdown. As a Verb or Adjective: 1. To restrict for a period of time the movement of people within or to an area because of public health or safety reasons. English = lockdown. Note: 1. This is a temporary video only. Apologies for the size and quality of the video.