decir
say
dictate
to say or read aloud
+
-ir
verb suffix
Decir means to say and can be remembered by thinking of the English word dictate0 (to say or read aloud0) with the Spanish verb suffix1 -ir1.
verb
  1. say
    To say; to tell
    ¿Qué quieres decir? // What do you want to say?