Verb (5-dan, る, transitive)
1.  to knead;  to thicken into a paste (stirring over a flame)
2.  to polish (a plan, etc.);  to refine;  to elaborate;  to work out
3.  to train;  to drill;  to exercise
4.  to gloss (silk);  to soften;  to degum
5.  to tan (leather)
6.  to temper (steel)
also written as 錬る
Verb (5-dan, る, intransitive)
7.  to walk in procession;  to parade;  to march
also written as 邌る