der Ohrring
earring
A piece of jewelry worn on the ear, usually on the earlobe.
Sie hat zum Geburtstag ein Paar silberne Ohrringe bekommen.
For her birthday, she got a pair of silver earrings.

earring
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earring
A piece of jewelry worn on the ear, usually on the earlobe.
Sie hat zum Geburtstag ein Paar silberne Ohrringe bekommen.
For her birthday, she got a pair of silver earrings.

The word is built very logically and is made up of 'das Ohr' (the ear) and 'der Ring' (the ring). So it is literally a ring for the ear.
Dieser goldene Ohrring passt gut zu deinem Kleid.
This gold earring goes well with your dress.
Since earrings are usually worn in pairs, people often say 'ein Paar Ohrringe' (a pair of earrings). Typical verbs are 'Ohrringe tragen' (to wear earrings) or 'Ohrringe anlegen/ablegen' (to put on/take off earrings).
Zum Fest trug sie ein Paar funkelnde Ohrringe.
For the celebration, she wore a pair of sparkling earrings.
When someone gets holes made for earrings, the fixed expression 'sich Ohrringe stechen lassen' (to get one's ears pierced) is used. The person is in the dative.
Meine Tochter möchte sich zum Geburtstag Ohrringe stechen lassen.
My daughter wants to get her ears pierced for her birthday.
piercing
'der Ohrring' and 'das Piercing' can both be jewelry worn on the body. An 'Ohrring' is worn on the ear, usually on the earlobe. A 'Piercing' is jewelry worn through a pierced area of the skin or cartilage; the word can also mean the process of piercing. The words can be confused because many earrings are worn through a pierced ear. In everyday language, however, people usually say 'Ohrring' when talking about normal ear jewelry. 'Piercing' is more suitable for jewelry on other parts of the body or in more noticeable places on the ear, for example in the cartilage.

Am Morgen sucht Sofia ihren zweiten Ohrring neben dem Waschbecken.
In the morning, Sofia looks for her second earring next to the sink.
Für das neue Piercing im Ohr geht Tom zu einem professionellen Studio.
Tom goes to a professional studio for the new piercing in his ear.