The difference between Only and Sole

When used as nouns, only means an only child, whereas sole means a wooden band or yoke put around the neck of an ox or cow in the stall.

When used as adjectives, only means alone in a category, whereas sole means only.

Only is also conjunction with the meaning: under the condition that.

Only is also adverb with the meaning: without others or anything further.

Sole is also verb with the meaning: to pull by the ears.

check bellow for the other definitions of Only and Sole

Only as an adjective:

Alone in a category.

Examples:

"He is the only doctor for miles."

"The only people in the stadium were the fans: no players, coaches, or officials."

"That was the only time I went to Turkey."
Only as an adjective:

Singularly superior; the best.

Examples:

"He is the only trombonist to recruit."
Only as an adjective:

Without sibling; without a sibling of the same gender.

Examples:

"He is their only son, in fact, an only child."
Only as an adjective (obsolete):

Mere.

Only as an adverb:

Without others or anything further; exclusively.

Examples:

"My heart is hers, and hers only. The cat sat only on the mat. It kept off the sofa."
Only as an adverb:

No more than; just.

Examples:

"The cat only sat on the mat. It didn't scratch it. If there were only one more ticket!"
Only as an adverb:

As recently as.

Examples:

"He left only moments ago."
Only as an adverb (obsolete):

Above all others; particularly.

Sole as a noun (dialectal, or, obsolete):

A wooden band or yoke put around the neck of an ox or cow in the stall.

Sole as a noun (dialectal, Northern England):

A pond or pool; a dirty pond of standing water.

Sole as a verb (transitive, UK, _, dialectal):

To pull by the ears; to pull about; haul; lug.

Sole as an adjective:

only
Sole as an adjective (legal):

unmarried (especially of a woman); widowed.

Sole as a noun (anatomy):

The bottom or plantar surface of the foot.
Sole as a noun (footwear):

The bottom of a shoe or boot.
Sole as a noun (obsolete):

The foot itself.
Sole as a noun:

Solea solea, a flatfish of the family Soleidae.
Sole as a noun (military):

The bottom or lower part of anything, or that on which anything rests in standing. The bottom of the body of a plough; the slade. The bottom of a furrow. The end section of the chanter of a set of bagpipes. The horny substance under a horse's foot, which protects the more tender parts. The bottom of an embrasure. A piece of timber attached to the lower part of the rudder, to make it even with the false keel.

Examples:

"rfquotek Totten"
Sole as a noun (mining):

The seat or bottom of a mine; applied to horizontal veins or lodes.