| Answer | Crossword Clue |
|---|---|
| GROUNDRULE | Basic principle |
| ABC | Basic principle |
| RADICAL | Basic principle. |
| TENET | Basic principle |
| RUDIMENT | Basic principle |
| ECHO | Basic principle of radar. |
| Answer | Crossword Clue |
|---|---|
| GROUNDRULE | Basic principle |
| ABC | Basic principle |
| RADICAL | Basic principle. |
| TENET | Basic principle |
| RUDIMENT | Basic principle |
| ECHO | Basic principle of radar. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.