say it: ee-RUHP-shuhn
eruption is a noun meaning "the sudden occurrence of a violent discharge of steam and volcanic material". It carries 6 recorded senses.
the sudden occurrence of a violent discharge of steam and volcanic material
symptom consisting of a breaking out and becoming visible
(of volcanos) pouring out fumes or lava (or a deposit so formed)
vent
a sudden violent spontaneous occurrence (usually of some undesirable condition)
“the outbreak of hostilities”
the emergence of a tooth as it breaks through the gum
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 eruption 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.