SEC vs Securities and Exchange Commission

SEC and Securities and Exchange Commission both are nouns.

Word	Noun	Adjective	Verb	Adverb
SEC	Yes	No	No	No
Securities and Exchange Commission	Yes	No	No	No

As nouns, SEC and Securities and Exchange Commission are synonyms defined as:

SEC and Securities and Exchange Commission: an independent federal agency that oversees the exchange of securities to protect investors

SEC (noun)	Securities and Exchange Commission (noun)
an independent federal agency that oversees the exchange of securities to protect investors	an independent federal agency that oversees the exchange of securities to protect investors