Answer: X means "Kiss" and can also mean "Variable" (in Math). Kiss. The letter X is widely used at the end of text messages and emails to signify a kiss. It can be X means "Kiss" and can also mean "Variable" (in Math). Kiss. The letter X is widely used at the end of text messages and emails to signify a kiss. It can be X means "Kiss" and can also mean "Variable" (in Math). Kiss. The letter X is widely used at the end of text messages and emails to signify a kiss. It can be 20
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