(n.) A placing or being placed in nearness or contiguity, or side by side; as, a juxtaposition of words.

abutment abuttal accession addition adjacency adjoiningness adjunct adjunction affixation agglutination annexation apposition appulse assemblage assembly attachment augmentation call-up canvass census collection colligation collocation combination comparison concourse concurrence confluence conflux congregation conjugation conjunction connection conterminousness contiguity convergence corralling coterminousness data-gathering gathering increase ingathering inventory joining junction mobilization muster perigee perihelion prefixation reinforcement rodeo roundup suffixation superaddition superfetation superjunction superposition supplementation survey syzygy union uniting