Eureka (interjection)

1. An exclamation of triumph on discovering or solving something.
2. An expression of satisfaction when one finds or discovers something.

Origin:

From the greek word εὕρηκα (heúrēka), meaning "i have found it!", said to have been exclaimed by archimedes when he discovered a method of determining the purity of gold.

Examples:

1. Eureka! I've found it!
2. The scientist shouted "Eureka!" when he finally discovered the cure for the disease.
3. The detective shouted "Eureka!" when he found the missing piece of evidence.
4. The word "Eureka" is often used to express the moment of a discovery or a breakthrough.
5. The word "Eureka" is derived from the Greek word for "I found it" and is used to express joy and satisfaction upon making a discovery.