► edge the part of an object or an area that is farthest from its center: Don’t put your glass so close to the edge of the table. My uncle’s house is on the edge of town near the freeway.
► side the part of an object or area that is near an edge: He pushed the cauliflower to the side of his plate.
► border the official line around a country, state, or area that separates it from other areas: We crossed the border into Mexico at Nogales.
► boundary the line that marks the edge of a surface, space, or area of land inside a country: The Mississippi River forms a natural boundary between Tennessee and Arkansas.
► perimeter the border around an enclosed area or a shape: Security guards patrol the perimeter of the camp night and day.
► outskirts the areas of a city that are furthest away from the center: They built the airport on the outskirts of the city.
► rim the outside edge of something deep or something with high sides, such as a cup or a canyon (=deep valley with very steep sides): There was lipstick on the rim of the cup.
► margin the empty space at either side of a printed page: I wrote some notes in the margins of the page.
► hem the edge of a piece of cloth that is folded and sewn, especially the lower edge of a skirt, pair of pants, etc.: The hem of her dress was coming loose.
► curb the raised edge of a street: If the curb is painted red, you can’t park next to it.