The correct term is "time clock," with a space between the two words. While "timeclock" and "time-clock" are sometimes used, they are less common and may be considered incorrect in formal writing. The two-word form "time clock" is the most widely accepted and recognized spelling in English language usage.
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.
No, "miles per hour" is not hyphenated. It is written as three separate words.
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.