SMS
/ˌɛsˌɛmˈɛs
/abbreviation
Short Message (or Messaging) Service, a system that enables mobile phone users to send and receive text messages.
noun (plural SMSs)
A text message that is sent or received using SMS: Britons send millions of 160-character SMSs a day
verb (SMSs, SMSing, SMSed) [no object]
Send someone a text message using SMS: I’m SMSing more than speaking on my mobile phone these days [with object]: SMS me or send me an email