lieutenant commander

1. 1.

   a commissioned officer in the Navy ranking above a lieutenant and below a commander

   Broadercommissioned naval officer

   military

Questions about lieutenant commander

What does lieutenant commander mean?

lieutenant commander means "a commissioned officer in the Navy ranking above a lieutenant and below a commander".

Is lieutenant commander a common word?

lieutenant commander is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.