| 100% | SQUAREPEG | 9 | Item that can’t fit in a round hole, in an idiom |
| 64% | PEG | 3 | Square thing that won't fit in a round hole |
| 63% | SQUAREPEG | 9 | Something that won't fit in a round hole: 2 wds. |
| 57% | APP | 3 | Item that can be placed in a folder on an iPhone |
| 56% | PEG | 3 | You can't fit a square __ in a round hole |
| 54% | PEG | 3 | A square one won’t fit in a round hole |
| 54% | PEG | 3 | A square one doesn't fit in a round hole |
| 52% | ISLE | 4 | Key that doesn't fit in a hole? |
| 48% | OAR | 3 | Long item that can create ripples in a lake |
| 48% | PEG | 3 | You can't put a square __ in a round hole |
| 46% | PEG | 3 | You can't put a round __ in a square hole |
| 45% | COMB | 4 | Item that can put a part in your hair |
| 45% | PEG | 3 | Wooden piece that fits in a hole |
| 44% | ATOM | 4 | Smallest quantity of an element that can take part in a chemical reaction |
| 44% | SPARETIRE | 9 | Item that can replace a flat in case of emergency: 2 wds. |
| 44% | FOIL | 4 | Wrap that can't go in a microwave |
| 43% | ACID | 4 | Liquid that could make a hole in metal |
| 42% | PEG | 3 | A square one doesn't fit into a round hole, according to sayings |
| 42% | DRILL | 5 | Tool that can put a hole in a wall |
| 42% | AWL | 3 | Tool that can make a hole in a belt |
| 42% | UFO | 3 | Item in the sky that could figure into a conspiracy theory: Abbr. |
| 41% | ERR | 3 | Try to fit a square peg in a round hole, e.g. |
| 41% | PATTY | 5 | Flattened round cake of ground meat that could go in a hamburger |
| 40% | PEG | 3 | A square ___ in a round hole |
| 40% | ASIS | 4 | Warning on an item that can't be returned: 2 wds. |
| 40% | WALLAH | 6 | Hindustani suffix meaning a person involved in an activity and that can follow punka, dabba, ricksha or chai |
| 40% | DESK | 4 | Item that George had a contractor modify so he could snooze, in Seinfeld's "The Nap" |
| 40% | PEG | 3 | Square ___ in a round hole |
| 40% | PEG | 3 | "Square ___ in a round hole" |
| 40% | ERASER | 6 | Stationery item used in Geometry class that can omit a 5 inch straight line |