noun

1. something that exactly succeeds in achieving its goal

    e.g. the new advertising campaign was a bell ringer
           scored a bull's eye
           hit the mark
           the president's speech was a home run

    Synonym: bell ringermarkhome run

2. in target shooting: a score made by hitting the center of the target

    e.g. in repeated sets of five shots his numbers of bull's-eyes varied

3. the center of a target

    Synonym: bull