Noun ironwood has 4 senses
- rose chestnut, ironwood, ironwood tree, Mesua ferrea - handsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfume; source of very heavy hardwood used for railroad ties
--1 is a kind of tree
--1 is a member of Mesua, genus Mesua
- ironwood - exceptionally tough or hard wood of any of a number of ironwood trees
--2 is a kind of wood
- iron tree, iron-tree, ironwood, ironwood tree - a small slow-growing deciduous tree of northern Iran having a low domed shape
--3 is a kind of angiospermous tree, flowering tree
--3 is a member of Parrotia, genus Parrotia
- Eastern hop hornbeam, ironwood, ironwood tree, Ostrya virginiana - medium-sized hop hornbeam of eastern North America
--4 is a kind of hop hornbeam
--4 is a member of Ostrya, genus Ostrya
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