Synonyms for Neighboring (same or very similar meaning)
WordNet sense 1 (having a common boundary or edge; touching):
adjacent, adjoining, conterminous, contiguous, abutting
WordNet sense 2 (joined or linked together):
connected
WordNet sense 3 (situated near one another):
neighbouring
WordNet sense 4 (not far distant in time or space or degree or circumstances):
close, near
From the ODE community, based on WordNet
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