Question

What does "marvel" mean in the sentence? "Now the U.S was joined together, literally and symbolically, by a marvel of engineering and human labor — the transcontinental railroad."

Answer 1

Wonder.

Step-by-step explanation:

noun. something that causes wonder, admiration, or astonishment; a wonderful thing; a wonder or prodigy: The new bridge is an engineering marvel. ... the feeling of wonder; astonishment.