This is the 5302nd most frequent German word.
be
The word "be" is not a standalone word in standard German; it is often a prefix in verbs like "beginnen" (to begin) or "besuchen" (to visit).
Usage here is as the infinitive 'sein' to indicate the verb 'to be'.
Sein oder Nichtsein, das ist hier die Frage.
To be or not to be, that is the question.
Usage here is as the first person singular conjugation of 'sein' indicating a state of being.
Ich bin glücklich.
I am happy.
Usage of 'sein' as part of a future construct using 'wird' suggesting that it 'will be'.