smiley

 
Pronunciation: /ˈsmʌɪli/
(also smily)

adjective (smilier, smiliest)

informal
  • smiling; cheerful: he drew a smiley face

noun (plural smileys or smilies)

  • (in electronic communications) a symbol that represents a smiling face, typically formed by the characters :-) and used to indicate that the writer is pleased or joking.