This is the 387th most frequent German word.
meist
"Meist" means "most" in English.
Here, 'meist' functions as an adverb meaning 'mostly' or 'usually,' specifying the frequency of being on time.
Ich bin meist pünktlich.
I am mostly on time.
Here, 'meist' is part of the word construction 'meistverkauften,' forming an adjective meaning 'most sold,' describing the books.
Die meist verkauften Bücher sind oft Bestseller.
The most sold books are often bestsellers.
Here, 'meist' is in its inflected form 'meisten,' functioning as part of a noun phrase meaning 'most restaurants.'