Avoir chaud / froid = To be hot / cold

The French expression literally means: I have cold. So froid is a noun.

Oui, merci

Is it because both chaud and froid are masculine nouns, so no matter which subjective pronoun it is, the chaud and froid always stay "chaud" and "froid"?

Hi  Luchen,

It will remain as ‘froid’ or ‘chaud’ as the expression is -

Avoir froid/ chaud .

J’ai froid , elle a froid, nous avons froid, elles ont froid  or chaud...

You only agree froid or chaud ( adjectives) when they are  linked to nouns as in -

L’ eau  chaude ou froide

Hope this helps!

merci

Correct!

Merci.

Hi Michael,

Could you give the context please?

The lesson is very clear that you don't use chaude to say that you're hot. But you can use it to describe other feminine things that are hot:

l'eau chaude

I think everything is cery clearly laid out in the lesson. You use the male form exclusively to say that you feel hot and you use the female form for female nouns that are hot.

Anne, tu as chaud ? -- Anne are you cold?
J'aime l'infusion chaude. -- I like hot herbal tea.

I guess the question concerned the female form only?

Hi Jinju,

you can say "I'm hot" in English even without sexual connotations. It depends on context and is stronger if you say this about another person like, "She's really hot!" (raising your eyebrows and looking lecherously) ;)

-- Chris. 

Hi Jinju,

As Chris says it all depends on context but I can only think of one expression in French when 'chaud' would have sexual connotations - 

Cet homme est un chaud lapin! 

I'll let you look for a translation ...