say it: juhk-stuh-puh-ZISH-uhn
juxtaposition is a noun meaning "the act of positioning close together (or side by side)". It carries 2 recorded senses.
the act of positioning close together (or side by side)
“it is the result of the juxtaposition of contrasting colors”
a side-by-side position
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for juxtaposition come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.