Real Dictionary

sec
countable noun: If you ask someone to wait a sec, you are asking them to wait for a very short time.

SEC in American English
Securities and Exchange Commission
abbreviation: Securities and Exchange Commission: a board, consisting of five members, charged with regulating the public offer and sale of securities

sec in American English 1
second2 (sense 1) second2 (sense 3)
adjective: dry; not sweet

sec in American English 2
dry; not sweet
noun

sec in American English 3
abbreviation: secant

SEC in British English
abbreviation for: Securities and Exchange Commission
noun: a US federal agency established in 1934 to supervise and regulate issues of and transactions in securities and to prosecute illegal stock manipulations

sec in British English 1
adjective: (of wines) dry

sec in British English 2
noun

sec in British English 3
abbreviation for: secant

SEC in Finance
abbreviation: The SEC is the US agency responsible for regulating the financial reporting of companies whose stock is publicly traded.

sec.
Sec. is a written abbreviation for second1 or , seconds.

sec. in American English
abbreviation: second

sec. in British English
abbreviation for: second (of time)

secant in British English 3
noun: (of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the adjacent side; the reciprocal of cosine