Added 9 October 2026 outcrop /ˈaʊt.kɹɒp/ noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about outcrop at Wordnik → Where our words come from → The part of a rock formation that appears above the surface of the surrounding land. verb Appear on the surface, come to the surface on the ground. Big boulders outcropped Related Words: occurcropupcroppingoutcroppercroppingscarbassetbassettbuttupstandplatform Back to today's word