As an adjective, it means feeling satisfied and at ease with what you have. As a noun, it can mean the ideas or material inside something, like a book, video, or website.
From Latin *contentus* meaning 'contained, satisfied', from *continere* 'to hold together, contain'. Over time, English used it both for the feeling of being 'held' in satisfaction and for what is 'contained' inside something, which is why it has two main meanings today.
This one word secretly holds two different ideas: your inner feeling (being content) and the stuff inside something (its content). Both come from the idea of being 'held within'—either your emotions held in calm, or information held inside an object. So when you scroll 'content' online, think of it as what’s being held inside your screen.
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