blocker

Likewise, any connections shared between your child (the blocker) and the user being blocked will also be broken.

an ad blocker

Sometimes your sales progress skids to a halt. We've all met more blockers than we'd care to. Some are assigned by the company to filter services […]

Blockers can optimize the development of preferred physical characteristics. In trans girls, blockers initiated prior to the development of male secondary sex characteristics will effectively prevent voice deepening, skeletal enlargement, and penile enlargement.

Because in 1937 Benjamin is still an apprentice, he remains bound to the Eastern Finland Hat Factory. […] Benjamin now does much of the same work as the master cutters and blockers and enjoys their grudging approval of his skills.