This is the 212th most frequent Ukrainian word.
одному
"Одному" means "to one" or "for one" in English.
The word 'одному' is in the dative case, used to indicate the indirect object of the action (the man who needed shelter).
Одному чоловікові потрібно було терміново знайти притулок.
One man urgently needed to find shelter.
Here, 'одному' functions as a general reference to an unspecified person in the dative case.
В такій ситуації одному краще залишитися вдома.
In such a situation, it is better for one to stay home.
The word 'одному' is used in the dative case to describe the single student to whom the book can be given.