JP
Justice
act between
adjudge
adjudicate
adjudicator
arbiter
arbitrate
arbitrator
bargain
bencher
critic
decide
go between
hear
his honor
his lordship
his worship
hold court
hold the scales
impartial arbitrator
indicator
intercede
intermediate
interpose
intervene
judge
judger
justice
linesman
magistrate
make terms
mediate
meet halfway
moderate
moderator
negotiate
official
officiate
referee
represent
sit in judgment
step in
third party
treat with
try
umpired
umpires
umpiring
depositary
lawgiver
pacificator
peacemaker
reconciler
timekeeper
ump