master and servant;  lord and retainer;  employer and employee
 follower;  attendant;  valet;  servant
 obedience;  submission;  resignation
 obedient;  gentle;  meek;  submissive;  docile
 up to now;  so far;  traditional;  conventional;  usual
 military service;  serving in a war;  taking part in a campaign
 master and servant;  lord and retainer;  employer and employee
 pretending to obey but secretly betraying (someone)
 single column (in marching)
 engaging in (work);  pursuing (e.g. studies);  following (a profession);  being involved in
 subordination;  dependency
 working exclusively for;  working full-time (for)
 steward;  butler;  attendant
 insubordination;  disobedience
 worker;  employee;  person being employed
 ad valorem duty;  ad valorem tax
 accessory (thing);  appurtenance
 subordinate;  secondary;  junior;  incidental;  accessory
 accessory before the fact
 assembling according to type;  collection of items sorted by type
 subordinating conjunction
 charging according to usage