Umgangssprache German for 'colloquial language'.
'unfilled pause' An interval of silence in speech: i.e. a pause not 'filled' by a hesitation form.
uvular Articulated with the back of the tongue against or approximated to the fleshy appendage (or uvula) at the back of the soft palate. E.g. the 'r' in French is variously a uvular trill or, more usually, a uvular fricative.
Definitions from: The Concise Oxford Dictionary of Linguistics, Second edition, 2007
Image credits: Wikipedia