1. He died young.

2. He died when he was young.
3. When he was young, he died.

(Are they all the same?)

4. a strong wind, a high wind,
a heavy wind,
5. a weak wind, a low wind
a light wind, a gentle wind
6. a warm wind, a chill wind, a chilly wind, a biting wind, a cool wind, a hot wind

7. an east wind, a west wind, a south wind, a north wind

(Is #4 the opposite of #5? Can we use all the expressions of #6 and #7?)

1, 2, and 3 are very much the same. In addition, #1 conveys the idea that he died too young. That is, he was a young man who shouldn't have died, but he did.

Yes, 4 is the opposite of 5. And, yes, all the expressions in 6 and 7 are just fine, depending on the exact meaning. A north wind, for example, means wind coming out of the north, and so forth.

I'm lost o-o

1. "He died young," "He died when he was young," and "When he was young, he died" all convey the same meaning, which is that the person in question passed away at a young age. The only difference lies in the structure and emphasis of the sentence. The first example is a simple statement, the second puts more focus on the time of his death, and the third emphasizes his youth.

2. In the examples you provided, #4 and #5 describe different aspects of wind, but they are not direct opposites.
- "A strong wind" and "a high wind" both describe wind with significant force or intensity.
- "A weak wind" and "a low wind" both describe wind with little force or intensity.
These phrases focus on the power or intensity of the wind rather than being opposites of each other.

3. The expressions listed in #6 and #7 can all be used to describe different characteristics or qualities of wind. Here is a breakdown of the possible interpretations:
- "A warm wind" refers to wind that is pleasantly heated.
- "A chill wind" or "a chilly wind" typically describes wind that feels cold or causes discomfort.
- "A biting wind" refers to wind that cuts through and feels extremely cold.
- "A cool wind" suggests wind that is refreshing or slightly cold.
- "A hot wind" describes wind that is warm to the point of being uncomfortable or unpleasant.
- "An east wind," "a west wind," "a south wind," and "a north wind" indicate the direction from which the wind is blowing.

In summary, while #4 and #5 describe different characteristics of wind, they are not direct opposites. All the expressions in #6 and #7 can be used to describe various qualities or characteristics of wind.