In architecture, a line through a square symbol typically represents a section cut. It indicates where a vertical plane has been sliced through a building or structure to reveal its internal features, such as walls, floors, and spatial relationships. This helps architects and builders understand the design in three dimensions and plan construction accordingly. The symbol serves as a visual guide for interpreting the building's layout and details.
The horizon
Yes. An example of symbols used today are 'icons' in the computer world, and the universal signs like the red circle with a diagonal line through it.
A national boundry is a thick black line
New Madrid Fault line
Sort of. There is a Druidic symbol for truth, although, like many other symbols, it has other meanings. Since Druids and Celts are associated with Ireland, it's probably a good bet the symbols would be the same (or at least quite similar). Although some pictures of the symbol only show the three lines, for a tattoo, you might want to add the three circles on top of each line. Now to describe this symbol: First, it's usually enclosed by three circles. The number 3 is very important in Celtic culture. Second, the middle line is centered and straight. The lines to the left and right flare out from the middle line, but also appear straight. At the top of each line is a small circle filled in with black. If you can find a magazine with Celtic designs, look for the symbol known as "Awen".
Circle with a line through it is square yards, a square with a line through it is square feet
The square root symbol is like a tick with a line connected to the top. Go to http://en.wikipedia.org/wiki/Square_root and the square root symbol is displayed.
The symbol is a zero with a diagonal line through it.
The diameter.
No.
The radical symbol ( √ ) followed by a line above what's in the radical, designates positive square root.
The symbol, which I can never find on Microsoft Word's symbol list, is a hollow square with a single, vertical line through the middle. It's placed at the end of a number, such as 2,550[I] but imagine the box/line as intersecting and the top/bottom of the vertical line extending outside the box at both top and bottom. (I had to play with brackets, here) and either the same size font of the numbers or smaller, but never larger (not meant to overshadow the numbers). It's very common in the construction and architecture industry- especially when handwriting instructions or notes in order to avoid having to 'read' someone's handwriting (plus, it takes up slightly less space). For whatever reason, it's not available in most font/symbol options.
The shorthand symbol for "through" is a horizontal line with two dots above it. It looks like this: ⇨.
The Australian Dollar (AUD) symbol is $. One vertical line through an "S".
angel halo
1
The alchemical symbol for calcium is a downward pointing triangle with a horizontal line through it.