in-house - two words, hyphenated.
It should be hyphenated.
No it shouldn't be hyphenated. It is one word.
Hyphenated
It is a hyphenated adjective, life-giving.
Coordinate is one word.
"Reuse" is one word.
One-half is a hyphenated word. It begins with the letter O.
Yes, end-product is hyphenated. It is a noun and treated as one word which is hyphenated.
No...heartbeat is one word.
No, "wholeheartedly" is one word.
City-wide can be hyphenated, more often these days it is quoted as one word