Added 9 October 2026 fe noun Categories: NatureUncommon Words noun ! Definition from WordNet 3.1, Princeton University. More about fe at Wordnik → Where our words come from → A heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood. Related Words: ironsemsantadabibelieftrustconvictionconfidencecredenceassurance Back to today's word