Few whose eyes are turned upward toward the trees have failed to note that exclamation-point of growth, the Lombardy poplar.
An exclamation-point sometimes gives the same words quite another meaning.
An obelisk made an exclamation-point against the sky, or the ruins of a temple fretted the horizon.
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.”