A natural hot spring that intermittently erupts bursts of water and steam.

A sudden occurrence of something, especially a surprising one.

किसी चीज़ की अचानक घटना, खासकर एक चौंकाने वाली।

English Usage: The geyser eruption caught everyone off guard during the picnic.

Hindi Usage: "पिकनिक के दौरान गीजर का विस्फोट सभी को अप्रत्याशित रूप से चौंका गया।"