
Sonntag is part of German nouns A1–B1 and Goethe A1 vocabulary.
derSonntag, -e
Sunday
/ˈzɔnˌtaːk/Examples — Sonntag in a sentence
Am Sonntag schlafe ich lange.
On Sunday, I sleep long.
Der Sonntag ist mein Lieblingstag.
Sunday is my favorite day.
How to remember it
SONN-tag. SONN sounds like 'sun'. *Sunday* is the day of the sun!