Look up: Sub-Officer

1. 
   Sub-Officer
   `Sub-Officer` is a term used in many military forces used to indicate ranks below commissioned officers. Sub-Officer is equivalent to the term NCO in the Commonwealth and USA. Historically armed forces using the term sub-officer have used it to refer to more senior non-commissioned ranks, typically from sergeant upwards, but often the term now covers all non-commissioned ranks. There is also a specific rank of `sub-officer` in some armed forces ...
   Found on http://en.wikipedia.org/wiki/Sub-Officer
   
   
2. 
   Subofficer
   Sub·of'fi·cer noun [ Prefix sub + officer : confer French sous-officer .] An under or subordinate officer.
   Found on http://www.encyclo.co.uk/webster/S/225
   
   
3. 
   Subofficer
   • (n.) An under or subordinate officer.
   Found on http://thinkexist.com/dictionary/meaning
   
   
4. 
   Subordinate officer
   A `subordinate officer`, in many navies (and sometimes other services) in the English-speaking world, is an officer who has not finished their initial training. Such officers are not commissioned, but are treated for most intents and purposes as commissioned officers.
   Found on http://en.wikipedia.org/wiki/Subordinate