Below a French and German article (5)
I believe the answer is:
under
'below' is the definition.
(synonyms)
'a french and german article' is the wordplay.
'a french' becomes 'un' ('a' in French).
'and' says to put letters next to each other.
'german article' becomes 'der' (definite article in German).
'un'+'der'='UNDER'
(Other definitions for under that I've seen before include "In the process of" , "Lower than" , "Anaesthetised" , "Managed by" , "Sub" .)