This is the 3164th most frequent German word.
ea
"Ea" is not a standard German word. It might be a typo or refer to something specific in another context.
The word 'Er' is used as the pronoun for 'he' in German, indicating the subject of the sentence.
Er ist sehr fleißig in seinem Studium.
He is very diligent in his studies.
'Er' is used here to refer to 'the dog,' functioning as the pronoun for a masculine noun.
Der Hund wartet geduldig, bis er sein Futter bekommt.
The dog waits patiently until he receives his food.
'Er' is not explicitly present here; instead, focus could be given to the implicit personal pronoun context when discussing pronouns in grammar.