The word "out-most" means the furthest or most distant point from the center. There are several synonyms for this word that can be used in different contexts or situations. One such word is "outermost," which carries the same meaning as "out-most." Other synonyms include "farthest," "extreme," "ultimate," and "outer." These words can be used to describe the furthest physical position of an object or the most extreme point of a concept or idea. Each of these synonyms can be used in different contexts to convey the same idea as "out-most." Overall, these words are useful in writing to convey distance or extremity.