This is the 11635th most frequent Russian word.
жемчуга
"Жемчуга" means "pearls" in English.
In this sentence, 'жемчугов' is in the plural genitive case, describing the material the necklace is made of.
Она надела ожерелье из жемчугов на праздник.
She wore a necklace made of pearls for the celebration.
Here, 'Жемчуг' is used in the singular nominative case as the subject of the sentence.
Жемчуг является символом изысканности и элегантности.
Pearl is a symbol of sophistication and elegance.
In this example, 'жемчуг' is in the singular accusative case as the direct object of the verb.