| Lissajous symbol generator(expression, technology, machine, automation) |
| N-symbol alphabet(expression, technology, machine, automation) |
| N-symbol lookahead(expression, technology, machine, automation) |
| absolute symbol(expression, technology, machine, automation) |
| abstract symbol(technology, expression, engineering, arranging) |
| acceleration symbol(expression, aviation, aeronautics, airmanship) |
| accented symbol(expression, machine, electronics, computers) |
| accounting symbol(technology, expression, engineering, arranging) |
| action state symbol(technology, expression, arranging, programming) |
| adjacent symbol(technology, expression, arranging, programming) |
| aeronautic symbol(expression, chart, cartography, mapmaking) |
| aeronautical symbol(expression, chart, cartography, mapmaking) |
| air information symbol(expression, chart, cartography, mapmaking) |
| aircraft reference symbol(expression, aviation, aeronautics, airmanship) |
| aircraft symbol(expression, aviation, aeronautics, airmanship) |
| airplane symbol(expression, aviation, aeronautics, airmanship) |
| alarm symbol(expression, connection, communications, telecommunications) |
| algebraic symbol(expression, technology, machine, automation) |
| algebraic symbol manipulation(technology, expression, arranging, programming) |
| allowed special symbol(technology, expression, arranging, programming) |