| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| hardening | present participle & vb. noun | of Harden, Making hard or harder., That which hardens, as a material used for converting the surface of iron into steel. |
| harderian | adjective | A term applied to a lachrymal gland on the inner side of the orbit of many animals which have a third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate. |
| hardiment | noun | Hardihood; boldness; courage; energetic action. |
| hardiness | noun | Capability of endurance., Hardihood; boldness; firmness; assurance., Hardship; fatigue. |
| hard-tack | noun | A name given by soldiers and sailors to a kind of hard biscuit or sea bread. |