Butternut1. (n.) An American tree (Juglans cinerea) of the Walnut family, and its edible fruit; -- so called from the oil contained in the latter. Sometimes called oil nut and white walnut.
2. (n.) The nut of the Caryocar butyrosum and C. nuciferum, of S. America; -- called also Souari nut.
Thesaurus Entries
acacia, ailanthus, alder, alligator pear, allspice, almond, apple, apricot, ash, aspen, atramentous, avocado, balsa, balsam, banyan, bass, basswood, bay, bayberry, beamless, beech, beechwood, betel palm, birch, black, black as coal, black as ebony, black as ink, black as midnight, black as night, black race, blackness, buckeye, burl, butternut, buttonwood, cacao, caliginous, candleberry, cashew, cassia, catalpa, charcoal, cherry, chestnut, chinquapin, cinnamon, citron, clove, coal, coal-black, coaly, coconut, cork, cork oak, crow, cypress, dark, dark as night, dark as pitch, darkling, darkness, darksome, deep black, dogwood, ebon, eclipsed, elder, elm, eucalyptus, fig, fir, frankincense, grapefruit, guava, gum, gumwood, hawthorn, hazel, hemlock, henna, hickory, holly, hop tree, horse chestnut, ink, ink-black, inkiness, inky, ironwood, jet, jetty, juniper, kumquat, laburnum, lancewood, larch, laurel, lemon, lime, linden, litchi, litchi nut, locust, logwood, magnolia, mahogany, mango, mangrove, maple, medlar, melanism, midnight, mountain ash, mulberry, night, night-black, night-clad, night-cloaked, night-dark, night-enshrouded, night-filled, night-mantled, night-veiled, nigrescence, nigritude, nigrous, nutmeg, oak, obfuscated, obscure, obscured, occulted, olive, orange, palm, papaw, papaya, peach, pear, pecan, persimmon, pine, pistachio, pitch, pitch-black, pitch-dark, pitchy, plane, plum, pomegranate, poplar, quince, raffia palm, rain tree, raven, raven-black, rayless, redwood, sable, sandalwood, sassafras, senna, sequoia, sloe, sloe-black, sloe-colored, smoke, smut, soot, spruce, starless, sumac, sunless, sycamore, tangerine, tar, tar-black, tarry, teak, tenebrious, tenebrose, tenebrous, tulip tree, unilluminated, unlighted, unlit, walnut, willow, witch hazel, yew