Definition of Otto I in English:

Otto I

Syllabification: Ot·to I
( 912–73), king of the Germans 936–973, Holy Roman Emperor 962–973; known as Otto the Great. As king of the Germans he carried out a policy of eastward expansion, and as Holy Roman Emperor he established a presence in Italy to rival that of the papacy.

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Word of the day animalcule
Pronunciation: ˌanɪˈmalkjuːl
noun
a microscopic animal