a. One that arouses awe, astonishment, surprise, or admiration; a marvel: “The decision of one age or country is a wonder to another”(John Stuart Mill).
b. The emotion aroused by something awe-inspiring, astounding, or marvelous: gazed with wonder at the northern lights.
An event inexplicable by the laws of nature; a miracle.
A feeling of puzzlement or doubt.
often Wonder A monumental human creation regarded with awe, especially one of seven monuments of the ancient world that appeared on various lists of late antiquity.