The words foreward, forward, foreword sound the same but have different meanings and spellings. Why do foreward, forward, foreword sound the same even though they are completely different words?
The answer is simple: foreward, forward, foreword are homophones of the English language.
An advance group; the vanguard.
Common misspelling of forward.
A preface or an introductory note, as for a book, especially by a person other than the author.
To help advance; promote. See Synonyms at advance.
At, near, or belonging to the front or forepart; fore: the forward section of the aircraft.
Located ahead or in advance: kept her eye on the forward horizon.
Going, tending, or moving toward a position in front: a forward plunge down a flight of stairs.
Definitions from Wiktionary, Creative Commons Attribution/Share-Alike License, from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.