noun
cup, mug
A2
Tasse: a feminine noun meaning 'cup' or 'mug', commonly for hot drinks. Plural is 'Tassen' (die Tassen). Regular declension. Used as a simple count noun (eine Tasse Kaffee). No irregular plural or special prepositions; standard accusative/dative forms follow normal feminine patterns.
Examples
Nachdem die Kellnerin die Tasse auf den Tisch stellte, bedankte sich der Gast, weil der Kaffee heiß war.
After the waitress placed the cup on the table, the guest thanked her because the coffee was hot.
Diese Tasse ist sehr groß, fast wie ein Becher.
This mug is very big, almost like a cup.
Ich trinke morgens eine Tasse Kaffee.
I drink a cup of coffee in the morning.
Details
Mnemonics
Picture a teacup with steam and a label 'die Tasse'.
Tasse ~ 'tass(e)' like 'tass' — imagine a tasse with tea.
die — imagine a feminine teacup with a ribbon labeled 'die Tasse'.