This is the 5225th most frequent German word.
ausdehnung
"Ausdehnung" means "extension" or "expansion" in English.
The word "Ausdehnung" is used here to refer to the physical expansion of the universe.
Die Ausdehnung des Universums ist faszinierend.
The expansion of the universe is fascinating.
In this sentence, "Ausdehnung" refers to the geographical size or reach of the country.
Die geografische Ausdehnung dieses Landes ist beeindruckend.
The geographical extension of this country is impressive.
Here "Ausdehnung" describes an extension in terms of time, used metaphorically to indicate prolonged duration.