n.
    - an officer of the highest rank in the armed forces of some countries. 
▸Brit. historical a high-ranking officer of state.
 - US a federal or municipal law officer. 
▸the head of a police department.
 ▸N. Amer. the head of a fire department.
 - an official responsible for supervising public events, especially sports events or parades.
 - (in the UK) an official accompanying a judge on circuit, with secretarial and social duties.
 
v.
 (marshals, marshalling, marshalled; US marshals, marshaling, marshaled)
    - assemble (a group of people, especially soldiers) in order.
 - bring together or arrange in order (facts, information, etc.).
 - direct the movement of (an aircraft) on the ground at an airport.
 - Heraldry  combine (coats of arms), to indicate marriage, descent, or the bearing of office.
 
 
  Derivative
  
    - marshaller n.
  - marshalship n.
 
   
  Etymology
  ME: from OFr. mareschal ‘farrier, commander’, from late L. mariscalcus, from Gmc elements meaning ‘horse’ (cf. mare1) and ‘servant’.