Can we use the term 'HOT SUN'. I am always confused if the term 'hot' can be used with sun. Eg: I don't want to go out in this hot sun.
What makes the sentence correct is what the word "sun" really means.
The usual definition refers to the actual entity, the star in the middle of our solar system.
The definition of "sun" here does not refer to the star but rather the intensity of heat and light that the sun casts over the environment.
Therefore, it is perfectly logical to say "hot sun" due to the fact that you are commenting on the ambient heat rather than the actual star.
The answer is YES, it is the right choice. "I don't want to go out in this hot sun" is perfectly gramatical and current usage.
Hot - adj - capable of giving a sensation of heat or of burning.
In addition to "sun", "hot" (specifically meaning "having a high temperature") is often used with several other nouns:
- hot dog
- hot weather
- hot bath
- hot dinner
- hot drink
- hot oven
Hot (adj) can also be used in several contexts (formal, informal or slang) where it has completely different meanings. You'll find most of them at http://www.thefreedictionary.com/hot