SMS messages can contain up to 160 characters. Friedhelm Hillebrand discovered most sentences fit within 160 characters. All characters, including letters, spaces, and punctuation, count towards the limit
DW stands for "don't worry" in texting and social media. It's a shortened version of "don't worry about it". All variations of "dw," "Dw," and "DW" are interchangeable
"Kkkk" is a Brazilian Portuguese abbreviation for "quá quá quá quá". It represents the sound of laughter in text messages. More "K"s indicate longer laughter duration. The abbreviation spread from Brazil to European Portuguese
"IK" or "ik" is a text abbreviation that means "I know". It helps shorten messages and speeds up typing. The more "ks" in the acronym indicates a longer "know"
Requires recipient's phone number and carrier information. Email addresses should end with @domain.com. Texting can take up to several hours. Some carriers charge SMS fees
Messages won't deliver if recipient's phone is turned off or in airplane mode. Recipient's carrier may be experiencing network outages. Data connection issues prevent message sending and receiving. Recipient may have disabled SMS in phone settings