all words that are real are in the dictionary!
I would refer to a dictionary. Not a children's dictionary, though.
"Urban Dictionary" is an online dictionary that mostly consists of slang words and curse words. "Dictionary.com" would be most recommended for cleaner behavior.
Some words need to be capitalized; others do not. For every word to be capitalized in a dictionary would be confusing because one would not know which words they would need to capitalize in everyday usage.
hard, har
Probably not. There always seems to be a few words which can be found in one dictionary which are not found in others. What unabridged means is that the dictionary contains all the words which the dictionary writer wrote definitions for. An abridged dictionary contains only those words that an editor thought you would likely need to look up, and leaves out those which are extremely technical or obsolete.
The word "earthing" would appear before "earth" in the dictionary, since words are listed in alphabetical order where similar words are grouped together.
The guide words "inhibit" and "infrequent" would likely appear on the same dictionary page as "infer."
It would depend on how comprehensive the dictionary was.
round
round
The word "signature" would appear between the guide words "signify" and "silly" in the dictionary.
round
In a dictionary, "maybe" would appear before "maypole" as words are typically organized alphabetically.
Hemis phere
Rotunda would come before rough in the dictionary as it begins with the letter "r" which comes before "u" alphabetically.
In a dictionary, words that may appear between the guide words zebra and zodiac are zeitgeist, zephyr, Zimbabwe, and zipper.
The word that would be in between "crochet" and "crossbones" on a dictionary page would be "crocus." In alphabetical order, the words would appear as "crochet," "crocus," and "crossbones."