I. loom 1 /luːm/ BrE AmE verb [intransitive]
[ Date: 1500-1600 ; Origin: Origin unknown ]
1 . [always + adverb/preposition] to appear as a large unclear shape, especially in a threatening way
loom up/out/ahead etc
Suddenly a mountain loomed up in front of them.
2 . if a problem or difficulty looms, it is likely to happen very soon:
An economic crisis is looming on the horizon.
3 . loom large to seem important, worrying, and difficult to avoid:
Fear of failure loomed large in his mind.
II. loom 2 BrE AmE noun [countable]
[ Language: Old English ; Origin: geloma 'tool' ]
a frame or machine on which thread is woven into cloth