Let us look at this word. I am fascinated by this word and how it relates to special need families.
1. An edge and the area immediately adjacent to it; a border.
2. The blank space bordering the written or printed area on a page.
3. A limit in a condition or process, beyond or below which something is no longer possible or acceptable: the margin of reality; has crossed the margin of civilized behavior.
4. An amount allowed beyond what is needed: a small margin of safety.