The difference between Gradient and Hill

When used as nouns, gradient means a slope or incline, whereas hill means an elevated location smaller than a mountain.

Gradient is also adjective with the meaning: moving by steps.

Hill is also verb with the meaning: to form into a heap or mound.

check bellow for the other definitions of Gradient and Hill

Gradient as a noun:

A slope or incline.
Gradient as a noun:

A rate of inclination or declination of a slope.
Gradient as a noun (calculus):

Of a function y = f(x) or the graph of such a function, the rate of change of y with respect to x that is, the amount by which y changes for a certain (often unit) change in x equivalently, the inclination to the X axis of the tangent to the curve of the graph.
Gradient as a noun (science):

The rate at which a physical quantity increases or decreases relative to change in a given variable, especially distance.
Gradient as a noun (analysis):

A differential operator that maps each point of a scalar field to a vector pointed in the direction of the greatest rate of change of the scalar. Notation for a scalar field φ: ∇φ
Gradient as a noun:

A gradual change in color. A color gradient; gradation.

Gradient as an adjective:

Moving by steps; walking.

Examples:

"gradient automata"

"rfquotek Wilkins"
Gradient as an adjective:

Rising or descending by regular degrees of inclination.

Examples:

"the gradient line of a railroad"
Gradient as an adjective:

Adapted for walking, as the feet of certain birds.

Hill as a noun:

An elevated location smaller than a mountain.

Examples:

"The park is sheltered from the wind by a hill to the east."
Hill as a noun:

A sloping road.

Examples:

"You need to pick up speed to get up the hill that's coming up."
Hill as a noun (US):

A heap of earth surrounding a plant.
Hill as a noun (US):

A single cluster or group of plants growing close together, and having the earth heaped up about them.

Examples:

"a hill of corn or potatoes"
Hill as a noun (baseball):

The pitcher's mound.