Verb (5-dan, る, intransitive)
1.  to fit into (a box, frame, category, etc.);  to be contained within;  to fall within (e.g. a budget)
2.  to settle down (into);  to be installed (in one's rightful place);  to be returned (to one's original position)
3.  to settle into (one's position);  to take up (a post);  to occupy (a role)
esp. 納まる
4.  to be settled (dispute, conflict, etc.);  to be sorted;  to subside (e.g. wind);  to calm down;  to abate
5.  to be satisfied (e.g. with an answer);  to consent;  to agree