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| a gadget; dingus; thingumbob. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| exclamation mark or (US) exclamation point | |
| —n | |
| 1. | the punctuation mark ! used after exclamations and vehement commands |
| 2. | this mark used for any other purpose, as to draw attention to an obvious mistake, in road warning signs, (in chess commentaries) beside the notation of a move considered a good one, (in mathematics) as a symbol of the factorial function, or (in logic) occurring with an existential quantifier |
| exclamation point or (US) exclamation point | |
| —n | |
A punctuation mark (!) used after an abrupt and emphatic statement or after a command: “‘Help!’ he cried, as his boat floated toward the edge of Niagara Falls.”