"block sth" in German to block sth. etw. blocken etw. verstopfen obstruieren Detailed translations for "block sth" to block sth. 1. general to block sth. etw. blocken{transitive verb} 2. medicine to block sth.(also: to block up sth., to clog sth., to clog up sth., to obstruct sth.) etw. verstopfen to block sth.(also: to block up sth., to clog sth., to clog up sth., to obstruct sth.) obstruieren{transitive verb}