Reich vs Second Reich

Reich and Second Reich both are nouns.

Word	Noun	Adjective	Verb	Adverb
Reich	Yes	No	No	No
Second Reich	Yes	No	No	No

As nouns, Second Reich is a hyponym of Reich; that is, Second Reich is a word with a more specific, narrower meaning than Reich:

Reich: the German state
Second Reich: the Reich when Hohenzollern monarchs ruled Germany (from 1871 to 1919)

Other hyponyms of Reich include Hohenzollern empire, Nazi Germany, Third Reich.

Reich (noun)	Second Reich (noun)
the German state	the Reich when Hohenzollern monarchs ruled Germany (from 1871 to 1919)
United States composer (born in 1936)
Austrian born psychoanalyst who lived in the United States; advocated sexual freedom and believed that cosmic energy could be concentrated in a human being (1897-1957)