big

The word “big” means large in size, amount, or extent. In plain terms, large in size or importance — one of the most common words in English for scale or significance.

“Big” is pronounced bihg (/bɪɡ/ in IPA).

Here is “big” used in a sentence: “They moved into a big house with a large garden.”

Depending on how it is used, “big” can be an adjective and an adverb.

The word “big” comes from Middle English. From Northern Middle English big or bigge, "powerful, strong," possibly from a dialect of Old Norse, ultimately traced to a Germanic root meaning "to swell" — the same root behind words like "bug" and "bugbear.".

“Big” is a very common word in modern English, usually learned at around the A1 level.

“Big” has 4 distinct senses listed in this dictionary. The most common is: large in size, amount, or extent.

Both describe size, but "big" is more informal and can also suggest importance or emotion, like a big decision or a big brother. "Large" is slightly more formal and sticks mainly to physical size or quantity, as in "a large coffee." You would order a large drink, but call something a big deal.

The usual opposites are "small," "little," and "tiny," with "tiny" being the most extreme. For amounts, "slight" or "minor" can act as opposites, and for importance, "unimportant" or "trivial." Which one fits depends on whether "big" refers to physical size, quantity, or significance in that particular sentence.

"Big" is neutral to informal, perfectly fine in everyday speech and most writing, but in very formal or technical contexts "large," "substantial," or "significant" often sound more polished. There is nothing wrong with "big"; it simply reads as plainer and more conversational than its more formal alternatives.

"Big" refers mainly to size or scale. "Great" can mean large too, but more often means excellent or important; a great film is a good one, not a large one. "A big difference" means a sizeable one, and "a great difference" leans the same way, yet "great" usually adds a note of quality or admiration.