blocker blocked • blockhead · · · Info · Definitions · Synonyms · Characters · · blocker · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a football player whose responsibility is to block players attempting to stop an offensive play. · · Noun Definition 1 (noun) a class of drugs that inhibit (block) some biological process. Synonyms: blocking agent. · · Noun Definition 2 Synonyms · · · blocking agent · · Synonym 1 Characters · · b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 k latin small letter k U+006B l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072