In both countries, "a good" can be used in several ways:
* As a general adjective: "That's a good idea."
* Before a noun to indicate quality: "She's a good cook."
* Before a noun to indicate a positive characteristic: "He's a good man."
However, there's a subtle difference in how the phrase is used:
* Australia: "A good" is more commonly used in everyday conversation. It can sometimes be used as a colloquial term for "very" or "extremely," though this is less common.
* England: "A good" is less commonly used as a standalone phrase. It's more likely to be used in conjunction with another adjective to emphasize a quality, such as "a very good time" or "a really good book."
Overall, while "a good" is understood in both Australia and England, its usage can differ slightly in formality and emphasis.
It's also worth noting that in some contexts, "a good" might be considered informal or even slangy in England.