Back number and Square

Square and back number are semantically related in old-fashioned topic. In some cases you can use "Square" instead the phrase "Back number" as an adjective or a noun, when it comes to topics like not current.

Square noun - (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon.

Back number and square are semantically related in conservative topic. You can use "Back number" instead the word "Square" as a noun or an adjective, if it concerns topics such as stick-in-the-mud.

Nearby Words: squared, squarely, squaring, squarish, squareness