really
The word 'wirklich' is used in German to express the same meaning as 'really' in English. It is an adverb that emphasizes the truth or intensity of a statement. For example, 'Ich bin wirklich müde' means 'I am really tired' in English. It can also be used to express surprise or disbelief, as in 'Wirklich?' which translates to 'Really?' in English.
Do you really have no money?
This is a question that uses 'wirklich' to emphasize the state of having no money. The phrase is used when the speaker is surprised or can't believe that the interlocutor has no money.
I am really tired.
This is an example of how 'wirklich' is used in a German sentence to emphasize the state of the speaker, just like 'really' is used in English to intensify an adjective. In this example, 'wirklich' is emphasizing the speaker's tiredness.