I'd just like to point out that in Bereishis 18 several other names are presented:
וְאַבְרָהָ֤ם וְשָׂרָה֙ זְקֵנִ֔ים בָּאִ֖ים בַּיָּמִ֑ים חָדַל֙ לִהְי֣וֹת לְשָׂרָ֔ה אֹ֖רַח כַּנָּשִֽׁים׃
And Avraham and Sarah were old, coming of age. Sarah had ceased to be Orach KaNashim. (v. 11)
So she used to be called Orach KaNashim but at some point lost that title.
וַתִּצְחַ֥ק שָׂרָ֖ה בְּקִרְבָּ֣הּ לֵאמֹ֑ר אַחֲרֵ֤י בְלֹתִי֙ הָֽיְתָה־לִּ֣י עֶדְנָ֔ה וַֽאדֹנִ֖י זָקֵֽן׃
And Sarah, Bekirbah, laughed, saying: After [I was] Belosi I will be Edna? And my master is Zakein! (v. 12)
So she was also called Bekirbah. It seems that she was also known as Belosi and was expressing astonishment that on top of all of her names she would also be called Edna. To top it off, even Avraham had a bunch of names - he was called Zakein!
HaShem, for the sake of peace (Yevamos 66), decided to not tell Avraham that Sarah had given him such a disparaging name and instead gave it to Sarah, along with another name:
וַיֹּ֥אמֶר יְהוָ֖ה אֶל־אַבְרָהָ֑ם לָ֣מָּה זֶּה֩ צָחֲקָ֨ה שָׂרָ֜ה לֵאמֹ֗ר הַאַ֥ף אֻמְנָ֛ם אֵלֵ֖ד וַאֲנִ֥י זָקַֽנְתִּי׃
And HaShem said to Avraham: What is this that Sarah laughed, saying, even [as] Umnam will I give birth? And I am Zakanti! (v. 13)
Sarah mistook that as Tzachakti, not Zakanti. Scared that people would make fun of her for having a name meaning "I laughed," she tricked the Malachim into changing it for her:
וַתְּכַחֵ֨שׁ שָׂרָ֧ה ׀ לֵאמֹ֛ר לֹ֥א צָחַ֖קְתִּי כִּ֣י ׀ יָרֵ֑אָה וַיֹּ֥אמֶר ׀ לֹ֖א כִּ֥י צָחָֽקְתְּ׃
And Sarah denied it, saying, I am not Tzachakti, for she was scared. And [the angel] said, no, you are Tzachakt. (v. 15)
In summary, this passage reveals seven more names for Sarah, one of which she lost, as well as one more for Avraham.