Lexicon , wordbook ,
The online Merriam-Webster dictionary (m-w.com) does not have "homebuyer" listed as a word, so I believe it would be two words. Home buyer
The possessive form of the word dictionary is dictionary's.
You really can't unless you're the one writing the dictionary.
This is because a dictionary typically contains words and their meanings, but it does not list itself as one of the words included. It serves as a reference guide for other words rather than being an entry itself.
You can get the definition of the word Sophistry and all other words in the dictionary. If you do not own a dictionary then you can go to any online dictionary to find the meaning of this word.
It is one word in Webster's dictionary.
According to Merriam-Webster Dictionary, jackrabbit is one word.
That is one word. According to the English Dictionary it currently is.
The word trapdoor is indeed recognized as one word by the dictionary.
One example of a dictionary word ending in "oft" is "aloft," which means at or to a great height.
It depends on which edition of Webster's dictionary you are looking at and if you have one your teacher gave you look for word counts.
Dictionary Regards! -LiamLee