A house after set up
In the context "this setup works great!", it is one word. In the context "I have to set up the table still", it is two words. In the context, "it was a set-up, I am innocent!", it is hyphenated.
in-house - two words, hyphenated.
It is a hyphenated adjective, life-giving.
"Handmade" is one "compound word", sometimes hyphenated as "hand-made"; not to be confused with handmaid, which is NOT hyphenated.
They are two words conjoined to be one.
Underdeveloped should be written as one word, not two words or hyphenated. I hope this answered your question. :)
it is two words but if hyphenated they become one word
One word is fine.
Businessmen is often written as one word. It can be two words or even hyphenated
no it does not get a hyphen, cause it is one word.
The word well-being is 2 words, usually hyphenated.
Compound words whose elements have not been combined, like toothbrush, into one word are generally hyphenated.