Shots of crowd watching Wightman Cup tennis competition in London

What is the primary focus of the '2nd' concept introduced in the video?

• A grammatical rule

• A new mathematical operation

• A scientific theory

• A historical event

What is a key takeaway from the '2nd' concept discussed in the video?

• It is a fundamental principle in physics

• It is a complex mathematical formula

• It is a common term in everyday language

• It is a rare phenomenon

Which example best illustrates the use of '2nd' as explained in the video?

• A car's second gear

• The second law of thermodynamics

• The second place in a race

• The second chapter of a book