Common Era | Book of Common Prayer | Common | Court of Common Pleas | Common (rapper) | Boston Common | Common Moorhen | Chief Justice of the Common Pleas | Ohio Courts of Common Pleas | Common Sense Media | Sense | Common Lisp | Common fig | Fanfare for the Common Man | Common land | Common Chaffinch | Common Cause | The Sixth Sense | Common Quail | Common European Framework of Reference for Languages | Common Emerald | Common Blackbird | Common Admission Test | Sense and Sensibility | RAF Greenham Common | ontology | Common Kingfisher | Common Eider | Clapham Common | Posse comitatus (common law) |
Some AI researchers like Douglas Lenat argue that one cannot parse meanings from words without some form of common sense ontology.