There is one warrior on fire and the people who are running from himThere is one warrior on fire and the people who are running from him
Harry potter and the one whose name cannot be pronouncedHARRY POTTER AND THE ONE WHOSE NAME CANNOT BE PRONOUNCED
The whole world is in one drop of water. extremely beautifulThe whole world is in one drop of water. Extremely beautiful
The stars of the popular comedy tv series in one photoThe stars of the popular comedy TV series in one photo
The one who stubbornly goes to the goal is always a championThe one who stubbornly goes to the goal is always a champion
Без других, в отдельности. Тот же самый, тожественный. Единый, целостный. Число, цифра и количество 1. Какой-то, некий. Только, исключительно. Какой-нибудь в ряду сходных.