say it: di-SAHR-muh-muhnt
disarmament is a noun meaning "act of reducing or depriving of arms". It carries one recorded sense.
act of reducing or depriving of arms
“the disarmament of the aggressor nations must be complete”
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 disarmament 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.