Meanings
a three-year-old (male or of unspecified gender)
three-year-old ( )
Der Dreijährige besucht den Kindergarten.
Examples
GermanEnglish
Mein Dreijähriger fordert wirklich meine Geduld heraus!My 3 year old is really trying my patience!
Tom konnte das schon als Dreijähriger.Tom has known how to do that since he was three.