n. 1. Any of various chiefly deciduous trees of the genus Fraxinus, having opposite, pinnately compound leaves, clusters of small flowers, and one-seeded winged fruits.
2. The strong, elastic wood of any of these trees, used for furniture, tool handles, and sporting goods such as baseball bats.
3. Linguistics The letter æ in Old English and some modern phonetic alphabets, representing the vowel sound of Modern English ash.