deterrent

"Is it going to be a deterrent ? I think people will need to be extremely careful when they're coming into the city," she added.

Pressuring Russia on other fronts could be its own deterrent.

Mother Caroline Willgoose says "kids are going to school frightened" and the installation of knife arches could be a deterrent to crime.

Investigators told the inquest a yellow warning label above the window bearing the words 'Caution do not lean out of window when train is moving' was an insufficient deterrent.

Recently France and the UK agreed on a "one in, one out" returns deal, which was designed as a deterrent to stop boats from crossing the Channel.