"Hardworking" is one word.
"Doorway" is one word.
"Foolproof" is one word.
It's one word. Some might say, the word is intact! :P
"Everyone" is one word.
Skies is the plural of sky, but the two can often by interchangeable. Take for instanceThe sky is so blue today.Could also be written as a plural:The skies are so blue today.We flew 30,000 feet up through the skies.I often look up at the skies.
"Bookwork" is one word, not two.
no it is not an one word it is of two word
I think the word "ongoing" is only one word, but it has two syllables that are two separate words.
The word "hairbrush" is typically written as one word, not two.
One word, two syllables
It is one word.
one word
The word "highlights" is one word.
Toenail is one word.
"Everyone" is one word.
one word