This is the 4250th most frequent German word.
deutlichen
"Deutlichen" means "to make clear" or "to clarify."
Used here as an adjective meaning 'clear' or 'distinct', describing the nature of the 'words'.
Die deutlichen Worte des Lehrers motivierten die Schüler.
The teacher's clear words motivated the students.
Used here again as an adjective, attributing quality to 'difference', suggesting it was perceivable firmly.
Ein deutlichen Unterschied war zwischen den Ergebnissen der beiden Gruppen zu erkennen.
A clear difference was distinguishable between the results of the two groups.
Used as an attributive adjective indicating the clarity or distinction of 'argument'.