This is the 1683rd most frequent German word.
buche
"Buche" in German means "beech" (a type of tree).
In this sentence, 'buche' is the first-person singular present tense form of the verb 'buchen', which means 'to book' or 'to reserve' in English.
Ich buche ein Hotelzimmer für meine Reise.
I am booking a hotel room for my trip.
Here, 'Buche' is a noun referring to a type of tree, specifically the beech tree in English, which is commonly found in European forests.
Die Buche ist ein weit verbreiteter Baum in Europa.
The beech is a widely distributed tree in Europe.
In this sentence, 'Buche' refers to 'Buche' (book), and it could be a special context or spelling variation meant for distinction, though the usual word for book is 'Buch.'