Eruption vs. Irruption
They sound very similar but have almost opposite meanings.
Here’s a breakdown of the difference.
Eruption
Eruption means a sudden, violent outbreak from within.
An explosion of steam and lava from a volcano is also called eruption.
- The sudden eruption of water swept away the people who were enjoying their vacations.
- Sick people have tiny reddish eruptions on the skin.
Irruption
A sudden, rapid increase or invasion into a place where something is not normally present in large numbers.
- The sudden irruption of soldiers in uniform and bearing arms in our peaceful, western existence.
- Political irruptions of the kind we witness are almost always uncontrollable during certain stages.
Difference between eruption and irruption:
Eruption comes from the prefix "e-" comes from Latin ex-, meaning "out." An eruption is something bursting forth from a contained space.
Irruption comes the prefix "ir-" comes from Latin in-, meaning "in" or "into." An irruption is something bursting into a new area from outside.
Eruption means a sudden, violent outbreak from within.
Irruption means a sudden, violent invasion or influx from outside.
Eruption is commonly used in violence, anger, acne, applause, etc.
- Stress can cause an eruption of acne on the skin.
- The political scandal led to a sudden eruption of protests across the country.
Irruption is commonly used in sudden population surges, unexpected arrivals, etc.
- An irruption of voles led to a boom in the local fox population.
- The quiet town was unprepared for the irruption of tourists during the festival.
Mnemonic:
Eruption = Explosion Out
Irruption = Invasion In
In a nutshell
Use eruption when something is bursting out (like lava from a volcano or anger from a person).
Use irruption when something is bursting in (like birds into a new habitat or people into a quiet space).
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