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FORWARD/FORWARDS/FOREWORD |
Although some style books prefer “forward” and “toward” to “forwards” and “towards,” none of these forms is really incorrect, though the forms without the final S are perhaps a smidgen more formal. The same generally applies to “backward” and “backwards.” There are a few expressions in which only one of the two forms works: step forward, forward motion, a backward child. The spelling “foreword” applies exclusively to the introductory matter in a book.