The difference between Gap and Rift

When used as nouns, gap means an opening in anything made by breaking or parting, whereas rift means a chasm or fissure.

When used as verbs, gap means to notch, as a sword or knife, whereas rift means to form a rift.

check bellow for the other definitions of Gap and Rift

Gap as a noun:

An opening in anything made by breaking or parting.

Examples:

"He made a gap in the fence by kicking at a weak spot."
Gap as a noun:

An opening allowing passage or entrance.

Examples:

"We can slip through that gap between the buildings."
Gap as a noun:

An opening that implies a breach or defect.

Examples:

"There is a gap between the roof and the gutter."
Gap as a noun:

A vacant space or time.

Examples:

"I have a gap in my schedule next Tuesday."
Gap as a noun:

A hiatus.

Examples:

"I'm taking a gap."
Gap as a noun:

A mountain or hill pass.

Examples:

"The exploring party went through the high gap in the mountains."
Gap as a noun (Sussex):

A sheltered area of coast between two cliffs (mostly restricted to place names).

Examples:

"At Birling Gap we can stop and go have a picnic on the beach."
Gap as a noun (baseball):

The regions between the outfielders.

Examples:

"Jones doubled through the gap."
Gap as a noun (Australia, for a medical or pharmacy item):

The shortfall between the amount the medical insurer will pay to the service provider and the scheduled fee for the item.
Gap as a noun (AU):

(usually written as "the gap") The disparity between the indigenous and non-indigenous communities with regard to life expectancy, education, health, etc.
Gap as a noun (genetics):

An unsequenced region in a sequence alignment.

Gap as a verb (transitive):

To notch, as a sword or knife.
Gap as a verb (transitive):

To make an opening in; to breach.
Gap as a verb (transitive):

To check the size of a gap.

Examples:

"I gapped all the spark plugs in my car, but then realized I had used the wrong manual and had made them too small."

Rift as a noun:

A chasm or fissure.

Examples:

"My marriage is in trouble: the fight created a rift between us and we can't reconnect."

"The Grand Canyon is a rift in the Earth's surface, but is smaller than some of the undersea ones."
Rift as a noun:

A break in the clouds, fog, mist etc., which allows light through.
Rift as a noun:

A shallow place in a stream; a ford.

Rift as a verb (intransitive):

To form a rift; to split open.
Rift as a verb (transitive):

To cleave; to rive; to split.

Examples:

"to rift an oak"

Rift as a verb (obsolete, outside, Scotland, and, northern, _, UK):

To belch.

Rift as a verb:

Examples:

"The mightie trunck halfe rent, with ragged rift"

"Doth roll adowne the rocks, and fall with fearefull drift."