This is a new word: "serendipity". It means "the occurrence of happy or beneficial events by chance". Let's make a sentence with it: "Finding my lost keys just as I was about to panic was a stroke of serendipity."

Explanation:

• The word "serendipity" is a common yet meaningful term that describes unexpected positive outcomes.
• Its definition is clear and concise, aligning with standard dictionary entries.
• The sentence uses the word naturally to illustrate a relatable, everyday scenario, making it easy to understand and remember.

This fills all blanks appropriately while maintaining clarity and relevance.
Answer:
serendipity
the occurrence of happy or beneficial events by chance
Finding my lost keys just as I was about to panic was a stroke of serendipity.

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