[noun] [C] - abbreviation for second (TIME)She completed the marathon in 4 hrs 15 mins 28 secs.(informal) A sec is any brief period of time.Would you mind waiting for me - I'll only be a couple of secs.I'd like to have a word with you when you've got a sec.
SEC
Meaning of SEC in English
Cambridge English vocab. Кембриджский английский словарь. 2012