In my father's accent/dialect (South Wales), the number seven is monosyllabic: it sounds more like "sevn" (with the v pronounced quite softly). The number "elev

In my father's accent/dialect (South Wales), the number seven is monosyllabic: it sounds more like "sevn" (with the v pronounced quite softly). The number "eleven" is similarly monosyllabic, and sounds more like "levn". I often use this when counting to a rhythm. Shame the numbers from thirteen onwards do have more than one syllable.