"Big" and "large" both describe something of considerable size, but they aren't always interchangeable. "Big" is more common in everyday conversation and has a broader meaning. It can refer to physical size, importance, or even age. "Large" is more formal and usually refers to physical size, often measurable. Think of it this way: you might say you have a "big" problem (importance), a "big" sister (age), or a "big" house (size). But you'd probably say you ordered a "large" pizza (measurable size), or you live in a "large" city (measurable size).

Here are a few examples to help illustrate the difference:

• Big dog: A dog of considerable size. (English translation: A dog of considerable size.)
• Large dog: A dog of considerable size, likely of a specific, larger breed. (English translation: A dog of considerable size, likely of a specific, larger breed.)
• Big news: Important or significant news. (English translation: Important or significant news.)
• Large news: This doesn't sound natural. "Large" doesn't fit well with abstract concepts like "news". (English translation: This doesn't sound natural. "Large" doesn't fit well with abstract concepts like "news".)
• Big eater: Someone who eats a lot. (English translation: Someone who eats a lot.)
• Large eater: While technically correct, "big eater" is much more common. (English translation: While technically correct, "big eater" is much more common.)

Happy learning!