is a specific kind of: tree.

is a broader term that covers: Ulmus alata, wing elm, winged elm | American elm, rock elm, Ulmus americana, water elm, white elm | European field elm, smooth-leaved elm, Ulmus carpinifolia | cedar elm, Ulmus crassifolia | Ulmus glabra, witch elm, wych elm | Dutch elm, Ulmus hollandica | Huntingdon elm, Ulmus hollandica vegetata | Ulmus laevis, water elm | Chinese elm, Ulmus parvifolia | English elm, European elm, Ulmus procera | Chinese elm, dwarf elm, Siberian elm, Ulmus pumila | red elm, slippery elm, Ulmus rubra | guernsey elm, Jersey elm, Ulmus campestris sarniensis, Ulmus campestris wheatleyi, Ulmus sarniensis, wheately elm | red elm, September elm, Ulmus serotina | rock elm, Ulmus thomasii ... show more.

is a member of: genus Ulmus, Ulmus.

contains: elmⁿ², elmwood.

is a specific kind of: wood.

is contained in: elmⁿ¹, elm tree.