No 'spreadeither' is two words so should be 'spread either'.
It is one word.
Its one word
One, it's a compound word.
It is one word.
one word
It is one word
Schoolchildren, one word.
One word. 'Sandstorm.'
Yes, daylight is one word!
"Doorway" is one word.
It is one word.
"Forehead" is one word.