'Commando' definitions:

Definition of 'commando'

From: WordNet
noun
A member of a military unit trained as shock troops for hit-and-run raids [syn: commando, ranger]
noun
An amphibious military unit trained for raids into enemy territory

Definition of 'Commando'

From: GCIDE
  • Commando \Com*man"do\, n. [D. See Command, v. t.]
  • 1. In South Africa, a military body or command; also, sometimes, an expedition or raid; as, a commando of a hundred Boers.
  • The war bands, called commandos, have played a great part in the . . . military history of the country. --James Bryce. [Webster 1913 Suppl.]
  • 2. a usually small military unit trained to perform special missions, often behind enemy lines, and usually employing hit-and-run tactics. Such units often have the destruction of fixed targets, such as enemy installations, as their mission, in contrast to normal combat units which engage the enemy army directly. [PJC]
  • 3. a member of a commando[2] unit. [PJC]