| Architectural pillars |
| Rectangular server with a dull-edged knife |
| Rectangular building stone |
| Rectangular piers |
| Rectangular pilaster |
| Rectangular score marking |
| Rectangular array of quantities or symbols |
| Rectangular devices with a D-pad and the buttons A, B, START, and SELECT |
| Cuts rectangular grooves |
| Having rectangular cells, as a ceiling |
| Ancient name of one of the Pillars of Hercules. |
| Rectangular pillars |
| Nonrectangular part of a skyline |
| Rectangular tile (with an effect?) used in a table game |
| Rectangular grooves |
| Only country without a rectangular flag |
| Religion with pillars |
| Red, rectangular solid |
| Religion with five pillars |
| Source of rectangular lettuce? |
| Rectangular cereal |
| Crop-threatening caterpillars |
| Only country with a non-rectangular flag |
| Pizza chain with a rectangular three-dot logo |
| Rectangular array that's identical when its rows and columns are transposed, as this puzzle's grid |
| Rectangular game pieces |
| One of the Pillars of Hercules, across from Gibraltar. |
| Rectangular courtyard |
| Pillars to Polonius |
| Geometrid caterpillars |