say it: awr-kuh-STRAY-shuhn
orchestration is a noun meaning "an arrangement of a piece of music for performance by an orchestra or band". It carries 3 recorded senses.
an arrangement of a piece of music for performance by an orchestra or band
the act of arranging a piece of music for an orchestra and assigning parts to the different musical instruments
an arrangement of events that attempts to achieve a maximum effect
“the skillful orchestration of his political campaign”
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 orchestration 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.