The **degree of a** monomial is the sum of the exponents of all its variables.

**Example 1:**

The degree of the monomial $7{y}^{3}{z}^{2}$ is $5\left(=3+2\right)$.

**Example 2:**

The degree of the monomial $7x$ is $1$ (since the power of $x$ is $1$).

**Example 3:**

The degree of the monomial $66$ is $0$ (constants have degree $0$).