According to dictionary (dot) com, time clock is spelled as two words, no hyphens.
It is a single word, stopwatch, for the particular watch used as a timing device.
it should be hyphenated: close-out
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
It is not one nor two words. It is hyphenated, just as it is written in the question.
Businessmen is often written as one word. It can be two words or even hyphenated
in-house - two words, hyphenated.
Underdeveloped should be written as one word, not two words or hyphenated. I hope this answered your question. :)
Roller-skate, as a verb, should be hyphenated. Roller skate, as a noun, is not.
One word is fine.
Self-made should be hyphenated.
Pre construction - two words not hyphenated.
No, "fourth floor" is not hyphenated. It is written as two separate words.
It should be hyphenated when it's used as an adjective.
self conscious
No.
Roller-skate, as a verb, should be hyphenated. Roller skate, as a noun, is not.
No, "self respect" is not a hyphenated word. It is typically written as two separate words.
yes