- noun an imaginary line between countries or regions
- noun a patch of soil at the side of a path or an area of grass where flowers or bushes are planted
- noun a frontier between two countries
- noun an area around printed or displayed text
- noun a thin boundary line around a button or field or a graphic image
- The boundary where things meet, or where one thing ends and the other begins. For instance, the boundary where p and n type semiconductor materials meet.
Information & Library Science
- noun a strip, line or band around the edge of something
- A narrow curtain, painted cloth, flat, etc. hung across the top of the stage behind the proscenium arch. Borders originated in Italy and by the 17th century were standard stage devices in England and on the Continent.
Originally known as a top drop, the overhead border concealed lighting and other equipment from the audience's view. When the bottom edge is cut to shape and painted like the sky, it is a sky border or a blue (see also clouding). In the early 19th centurythis was often replaced by such illusionistic devices as the panoramaand diorama. Other framing pieces on stage include a tree border painted to resemble foliage, and a border tail or leg, which is a cloth or narrow flat hanging down at each end to mask the wing and help form an arch over the scene.
- noun a line that marks the point where one country or region ends and another begins