(Snooker) An area, semi-circular in shape, with the straight side formed by the line drawn between the spot for the yellow and the spot for the green measured 29 inches out from the face of the bottom cushion (sometimes referred to as the baulk line) and the semi-circle is determined by the size of the table being used. Found on http://www.billiardworld.com/glossary.html
In music D is the nominal of the second tone in the model major scale (that in C), or of the fourth tone in the relative minor scale of C (that in A minor), or of the key tone in the relative minor of F. Found on http://www.probertencyclopaedia.com/browse/VD.HTM
Abbreviation for day; diameter; died; in the UK, d was the symbol for a penny (Latin denarius) until decimalization of the currency in 1971 Found on https://www.encyclo.co.uk/local/21221