Vladimir Nabokov was a Russian-American novelist, poet, and playwright. He is best known for his novel 'Lolita', which is a six-letter word in the crossword. It tells the story of a middle-aged professor's obsession with a twelve-year-old girl. Another three-letter word in the crossword is 'ADA', which is the title of Nabokov's longest novel. It follows the lives of two wealthy families over several generations. The four-letter word 'Pnin' is the title of another Nabokov novel, which follows the life of a Russian professor living in America. The three-letter word 'Dar' is the title of a short story by Nabokov about a man who is haunted by memories of his past. The four-letter word 'MARY' is the title of a novel by Nabokov about a young woman who is struggling to find her place in the world. Lastly, the eight-letter word 'Palefire' is the title of a novel by Nabokov about a poet whose work is posthumously published.