Eruption is a noun with several senses. The most common everyday use is a sudden burst of volcanicrelating to volcanoes or material coming from a volcano activity. It can also mean a sudden outbreaka sudden start of something bad, especially violence or illness of violence, disease, or noise, and in medical or dental contexts it can refer to something breaking through the surfacethe outside or top layer of something.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /ˌɪˈrʌpʃən/
Easy pronunciation: ih-RUP-shun (approximate spelling).
Stress: Stress is on the second syllable: RUP.
Volcano sense: a sudden violent discharge of lava, ash, steam, and other volcanic material.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.
Eruption Meaning
a volcano bursting out lava, ash, or steam
Part of speech: noun
Definition: the sudden occurrence of a violent discharge of steam, lava, and volcanic material from a volcano
Example: The eruption sent ash high into the sky.
Synonyms for this meaning:
- volcanic eruption — A direct synonym for the volcano sense.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.
Other Meanings of Eruption
Meaning 2
a sudden outbreak or burst of something bad
Part of speech: noun
Definition: a sudden violent spontaneous occurrence, usually of something undesirable
Example: The city saw an eruption of violence after the game.
Synonyms for this meaning:
- irruption — Works for a sudden forceful outbreak, though it is less common.
- outbreak — A practical synonym when something bad spreads or starts suddenly.
Meaning 3
a loud burst of sound
Part of speech: noun
Definition: a sudden very loud noise
Example: There was an eruption of laughter from the back of the room.
Synonyms for this meaning:
- bam — Can fit a loud sudden sound, but is informal and not a precise dictionary-level synonym.
- bang — A sharp loud noise.
- blast — A strong sudden sound, especially from an explosion or horn.
- clap — Can mean a sharp noise, but is less direct than bang or blast.
Meaning 4
a skin rash or sudden visible breakout
Part of speech: noun
Definition: symptom consisting of a breaking out and becoming visible
Example: He developed an eruption on his chest.
Meaning 5
a tooth coming through the gums
Part of speech: noun
Definition: the emergence of a tooth as it breaks through the gum
Example: The eruption of the first tooth can be uncomfortable for babies.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.
Eruption Synonyms
Similar Meaning
- volcanic eruption
sudden violent outbreak or occurrence
- irruption
- outbreak
sudden very loud noise
- bang
- blast
- clap
- bam
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.
Common Mistakes
- Do not confuse eruption with an explosion: an eruption is usually the release of lava, steam, or similar material, though the words can overlap in some contexts.
- Do not use the volcanic meaning for skin rashes or tooth eruption; those are separate senses.
- Bang, blast, and clap can suggest a noise, but they are not synonyms for the volcano sense.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What is the main meaning of eruption?
The most common meaning is a volcano suddenly sending out lava, ash, and steam.
Can eruption mean a rash?
Yes. In medicine, eruption can mean a visible skin outbreak or rash.
What are good synonyms for eruption?
For the volcano sense, volcanic eruption is the safest synonym. For other senses, outbreak and irruption can fit a sudden harmful event, while bang or blast can fit a loud sound.
Is eruption the same as explosion?
Not exactly. An eruption is usually the release of material from a volcano or a sudden breakout, while an explosion is a violent bursting apart.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-15. AI assessment; not a guarantee of accuracy.