| Subject | Czech | English |
| construct. | metoda kolmic | right-angle method |
| astr. | spustiti s bodu kolmici | drop a perpendicular (from a point) |
| astr. | vztyčiti v bodu kolmici | construct a perpendicular |
| astr. | vztyčiti v bodu kolmici | draw a normal |
| astr. | vztyčiti v bodu kolmici | erect a normal |
| astr. | vztyčiti v bodu kolmici | erect a perpendicular (at a point) |