This is the 14540th most frequent German word.
leckeren
Tasty or delicious.
'Leckeren' here is used as an attributive adjective modifying the masculine singular noun 'Apfel' in accusative case. Its ending is 'en' according to the strong declension rules of adjectives in German.
Ich habe heute einen leckeren Apfel gekauft.
I bought a delicious apple today.
'Leckeren' functions as an attributive adjective describing the masculine singular noun 'Kuchen' in accusative case. The adjective agrees in case, gender, and number with the noun it modifies.
Wir haben einen leckeren Kuchen gebacken.
We baked a delicious cake.
'Leckeren' modifies the masculine singular noun 'Salat', which is in accusative case due to the verb 'genießen.' The ending of the adjective aligns with the masculine, accusative form.