newsworthiness; topicality; buzzworthiness
Refers to the quality of being a hot topic or having public interest, often used in media and marketing contexts.
This incident has high newsworthiness, so many media outlets are covering it.
They used a celebrity to increase the buzz around the new product.
Compound of 話題 (topic) + 性 (-ness, quality). The exact historical derivation is uncertain, but the word follows a common pattern for abstract nouns.