To sensationalise means to make something sound more exciting or shocking than it really is, especially in news or stories.
Sensationalising can make people feel like they are being tricked or that the news is not true.
Examples:
The newspaper sensationalised the story to sell more copies.
I don't like it when they sensationalise the news.
She always sensationalises her stories to make them more interesting.
The movie sensationalised the monster to make it scarier.
The TV show sensationalised the treasure to make it seem more valuable.
He sensationalised the fish he caught to make it seem bigger than it was.