def abbr(abbreviation='', fullWord=''):
    """
    *Get HTML5 Abbreviation*

    **Key Arguments:**
        - ``abbreviation`` -- the abbreviation
        - ``fullWord`` -- the full word

    **Return:**
        - abbr
    """
    abbr = (
        '<abbr title="%(fullWord)s" class="initialism">%(abbreviation)s</abbr>'
         % locals())
    return abbr
