Definition of dayan in English:
 dayan
nounPlural dayanim daˈjɑːn
Judaism A religious judge, in particular one in a rabbinic court.
 Example sentencesExamples
-  During the vigil a representative of the Beth Din invited participants inside to meet the dayanim.
 -  Judges other than dayanim must also pledge loyalty to the laws of the state; dayanim are subject only to religious law.
 -  After a brief consultation, the dayanim will ask you to enter.
 -  Now we are encouraging them to appoint dayanim who are open to social change and ready to fight for it.
 -  However provoked, the dayanim adjourned without a decision and set a date for a second trial.
 -  Sadly, however, I was witness to many more instances where dayanim treated women petitioners, as well as their female lawyers, with a disdain bordering on hostility.
 
Origin
  
From Hebrew dayyān, from dān 'to judge'.