Word: SI
Part of speech: Proper noun
Syllables: si
Definition: Proper noun~ Initialism of Smithsonian Institution;  is a trust instrumentality of the United States composed as a group of museums and research centers
Morphemes:
Affix: SI
Language: en
PoS: Proper noun
Meaning: Proper noun~ Initialism of Smithsonian Institution;  is a trust instrumentality of the United States composed as a group of museums and research centers