Learn That Word

Synonyms for Adjacent (same or very similar meaning)

WordNet sense 1 (having a common boundary or edge; touching):
adjoining, conterminous, contiguous, abutting, neighboring

WordNet sense 2 (joined or linked together):

WordNet sense 3 (nearest in space or position; immediately adjoining without intervening space):
next, side by side

WordNet sense 4 (at or within a short distance in space or time or having elements near each other):

WordNet sense 5 (not far distant in time or space or degree or circumstances):

From the ODE community, based on WordNetadd/edit