See nigh in Webster's New World Roget's A-Z Thesaurus II
adverb
To a point near in time, space, or relation:
close, closely, hard, near, nearby. See near
adjective
Not far from another in space, time, or relation:
adjacent, close, contiguous, immediate, near, nearby, proximate. Idioms: at hand, under one's nose, within a stone's throw, within hailing distance. See near
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