0 immediately after the first and before any others: --
We've decided to hold the conference every second year.
Pay attention to what she's saying because she won't explain it a second time.
You really should make the most of the opportunity, because you won't get a second chance.
She is often described as a second Marilyn Monroe.
First prize is two weeks in Barbados and second prize is a weekend in Rome.
Today is the second (of March).
Is Carla her first or second child?
1 after the first and before any others: --
2 a short unit of time that is equal to a 60th of a minute: --
It won't take a second (= it will be very quick).
Do you have a second, Paul? I need to talk to you.
"Come on, hurry up!" "I'll just/only be a second - I need to close the window."
The new system can trace a phone call in a fraction of a second.
These computers process millions of instructions per second.
There are 60 seconds in a minute.
3 the second person or thing to do or be something, or the second person or thing mentioned: --
4 the smallest unit used for measuring an angle: --
There are 3,600 seconds in a degree.
5 a product that is sold cheaply because it is damaged or not in perfect condition --
The computer takes a few seconds to power up after it's been switched on.
Any half-decent sprinter can run 100 metres in 11 seconds.
In the second experiment they obtained a very clear result.