The difference between Fasten and Loose

When used as verbs, fasten means to attach or connect in a secure manner, whereas loose means to let loose, to free from restraints.

Loose is also interjection with the meaning: begin shooting.

Loose is also noun with the meaning: the release of an arrow.

Loose is also adjective with the meaning: not fixed in place tightly or firmly.

check bellow for the other definitions of Fasten and Loose

Fasten as a verb (ambitransitive):

To attach or connect in a secure manner.

Examples:

"The sailor fastened the boat to the dock with a half-hitch."

"Fasten your seatbelts!"

"Can you fasten these boards together with some nails?"
Fasten as a verb:

To cause to take close effect; to make to tell; to land.

Examples:

"to fasten a blow"

Loose as a verb (transitive):

To let loose, to free from restraints.
Loose as a verb (transitive):

To unfasten, to loosen.
Loose as a verb (transitive):

To make less tight, to loosen.
Loose as a verb (intransitive):

Of a grip or hold, to let go.
Loose as a verb (archery):

to shoot (an arrow)
Loose as a verb (obsolete):

To set sail.
Loose as a verb (obsolete):

To solve; to interpret.

Examples:

"rfquotek Spenser"

Loose as an adjective:

Not fixed in place tightly or firmly.

Examples:

"This wheelbarrow has a loose wheel."
Loose as an adjective:

Not held or packaged together.

Examples:

"You can buy apples in a pack, but they are cheaper loose."
Loose as an adjective:

Not under control.

Examples:

"The dog is loose again."
Loose as an adjective:

Not fitting closely

Examples:

"I wear loose clothes when it is hot."
Loose as an adjective:

Not compact.

Examples:

"It is difficult walking on loose gravel."

"a cloth of loose texture"
Loose as an adjective:

Relaxed.

Examples:

"She danced with a loose flowing movement."
Loose as an adjective:

Not precise or exact; vague; indeterminate.

Examples:

"a loose way of reasoning"
Loose as an adjective:

Indiscreet.

Examples:

"Loose talk costs lives."
Loose as an adjective (dated):

Free from moral restraint; immoral, unchaste.
Loose as an adjective (not comparable, sports):

Not being in the possession of any competing team during a game.

Examples:

"He caught an elbow going after a loose ball."

"The puck was momentarily loose right in front of the net."
Loose as an adjective (dated):

Not costive; having lax bowels.

Examples:

"rfquotek John Locke"

Loose as a noun (archery):

The release of an arrow.
Loose as a noun (obsolete):

A state of laxity or indulgence; unrestrained freedom, abandonment.
Loose as a noun (rugby):

All play other than set pieces (scrums and line-outs).
Loose as a noun:

Freedom from restraint.

Examples:

"rfquotek Prior"
Loose as a noun:

A letting go; discharge.

Examples:

"rfquotek Ben Jonson"