| erupt | (verb) become active and spew forth lava and rocks | Synonyms: belch, extravasate |
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| (verb) start abruptly | Synonyms: break out |
| (verb) erupt or intensify suddenly | Synonyms: break open, burst out, flare, flare up, irrupt |
| (verb) become raw or open | Synonyms: break out, recrudesce |
| (verb) break out | Synonyms: break through, come out, push through |
| (verb) appear on the skin | - |
| (verb) force out or release suddenly and often violently something pent up | Synonyms: break, burst |
| (verb) start to burn or burst into flames | Synonyms: catch fire, combust, conflagrate, ignite, take fire |
| eruption | (noun) the sudden occurrence of a violent discharge of steam and volcanic material | Synonyms: volcanic eruption |
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| (noun) a sudden very loud noise | Synonyms: bam, bang, blast, clap |
| (noun) the emergence of a tooth as it breaks through the gum | - |
| (noun) a sudden violent spontaneous occurrence (usually of some undesirable condition) | Synonyms: irruption, outbreak |
| (noun) (of volcanoes) pouring out fumes or lava (or a deposit so formed) | Synonyms: eructation, extravasation |
| (noun) symptom consisting of a breaking out and becoming visible | - |
| eruptive | (adjective) produced by the action of fire or intense heat | Synonyms: igneous |
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| (adjective) producing or characterized by eruptions | - |
| (adjective) actively spewing out lava | - |