Explain the difference between likelihood and probability.

What will be an ideal response?

Probability is, according to one common statistical definition, the frequency
with which an event occurs as the number of experiments tends to infinity.
Probability is defined by a probability density function which is a function
of the attribute values of an object. Typically, a probability density function
depends on some parameters. Considering probability density function to be
a function of the parameters yields the likelihood function.