Obelism Obol (coin) Obelus Diple (textual symbol) Aristarchian symbols Hypodiastole Skewer Jean-Marie Bayol Mahogany (film) Dagger (mark) Souvlaki Obelisk Thomas Dempster Ancient Greek coinage Janus Cornarius List of medieval abbreviations List of Polypedilum species Miss Congo (RC) List of Greek and Latin roots in English/O Punctuation List of Greek and Latin roots in English/H–O