commander meaning
EN
[kəˈmændɚ] [kəˈmɑːndə] 
US WCommander
- Commander is a naval officer rank. Commander is also used as a rank or title in other organizations, including several police forces.
- Commander is also a generic term for an officer commanding any armed forces unit, for example "platoon commander", "brigade commander", "squadron commander", etc. In the police, terms such as "borough commander" and "incident commander" are used.
- As a naval rank it is normally immediately senior to lieutenant commander, in Scandinavia, the rank commander is known as "Commander-Captain" (Norwegian: Kommandørkaptein, Swedish: Komendör-kapten, Danish: Kommandørkaptajn).
FR commander 
- NounPLcommandersPREcom-
- One who exercises control and direction of a military or naval organization.
- A naval officer whose rank is above that of a lieutenant commander and below that of captain.
- One who exercises control and direction over a group of persons.
- A designation or rank in certain non-military organizations such as NASA and various police forces.
- (obsolete) The chief officer of a commandry.
- A heavy beetle or wooden mallet, used in paving, in sail lofts, etc.
- A rank within an honorary order: e.g. Commander of the Legion of Honour.
- One who exercises control and direction of a military or naval organization.
- More Examples
- Used in the Middle of Sentence
- Abû Rajâ of Sha'b recounted his role as village band commander proudheartedly.
- Used in the Ending of Sentence
- He discrowned, in rapid succession, one after another of the United States' most, accomplished and admirable commanders.
- Used in the Middle of Sentence
Definition of commander in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
- fr commander
- en commanders
- fr commandera
- en commandery
- fr commanderas
Source: Wiktionary
Grammatically, this word "commander" is a noun, more specifically, a countable noun.