#1 loom v. come into view indistinctly, often threateningly; "Another air plane loomed into the sky". wn
#2 loom v. [tower, predominate, hulk] appear very large or occupy a commanding position; "The huge sculpture predominates over the fountain"; "Large shadows loomed on the canyon wall". wn
#3 loom v. [brood, hover, bulk large] hang over, as of something threatening, dark, or menacing; "The terrible vision brooded over her all day long". wn
#4 loom n. a textile machine for weaving yarn into a textile. wn
#5 loom v. weave on a loom; "materials loomed in Egypt". wn
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