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The Collaborative International Dictionary
Lieutenant commander

Lieutenant \Lieu*ten"ant\ (l[-u]*t[e^]n"ant), n. [F., fr. lieu place + tenant holding, p. pr. of tenir to hold, L. tenere. See Lieu, and Tenant, and cf. Locum tenens.]

  1. An officer who supplies the place of a superior in his absence; a representative of, or substitute for, another in the performance of any duty.

    The lawful magistrate, who is the vicegerent or lieutenant of God.
    --Abp. Bramhall.

    1. A commissioned officer in the army, next below a captain.

    2. A commissioned officer in the British navy, in rank next below a commander.

    3. A commissioned officer in the United States navy, in rank next below a lieutenant commander. Note: Lieutenant is often used, either adjectively or in hyphened compounds, to denote an officer, in rank next below another, especially when the duties of the higher officer may devolve upon the lower one; as, lieutenant general, or lieutenant-general; lieutenant colonel, or lieutenant-colonel; lieutenant governor, etc. Deputy lieutenant, the title of any one of the deputies or assistants of the lord lieutenant of a county. [Eng.] Lieutenant colonel, an army officer next in rank above major, and below colonel. Lieutenant commander, an officer in the United States navy, in rank next below a commander and next above a lieutenant. Lieutenant general. See in Vocabulary. Lieutenant governor.

      1. An officer of a State, being next in rank to the governor, and in case of the death or resignation of the latter, himself acting as governor. [U. S.]

      2. A deputy governor acting as the chief civil officer of one of several colonies under a governor general.

Wiktionary
lieutenant commander

n. A naval officer whose rank is higher than a lieutenant and below that of a commander.

WordNet
lieutenant commander

n. a commissioned officer in the navy ranking above a lieutenant and below a commander

Wikipedia
Lieutenant commander

Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr, LtCdr. or LCDR) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies (armed services) and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader.

The NATO rank code is mostly OF-3.

A lieutenant commander is a senior department officer or the executive officer ( second-in-command) on many warships and smaller shore installation, or the commanding officer of a smaller ship/installation. They are also senior department officers in naval aviation squadrons.

Lieutenant commander (United States)

Lieutenant commander (LCDR) is a mid-ranking officer rank in the United States Navy, the United States Coast Guard, the United States Public Health Service Commissioned Corps, and the National Oceanic and Atmospheric Administration Commissioned Officer Corps (NOAA Corps), with the pay grade of O-4 and NATO rank code OF-3. The predecessors of the NOAA Corps, the United States Coast and Geodetic Survey Corps (1917-1965) and the Environmental Science Services Administration Corps (1965-1970), also used the lieutenant commander rank, and the rank is also used in the United States Maritime Service and the United States Naval Sea Cadet Corps. Lieutenant commanders rank above lieutenants and below commanders, and rank is equivalent to a major in the other United States Army, United States Air Force, and United States Marine Corps.

Promotion to lieutenant commander in the U.S. Navy is governed by United States Department of Defense policies derived from the Defense Officer Personnel Management Act of 1980. DOPMA guidelines suggest 80% of lieutenants should be promoted to lieutenant commander after serving a minimum of three years at their present rank and after attaining nine to eleven years of cumulative commissioned service.

While lieutenant commander is the U.S. Navy's first commissioned officer to be selected by board, they are still considered to be junior officers due to their origin as "lieutenant, commanding." This can be seen by the fact that lieutenant commanders do not wear the oak-leaf gold embellishment (colloquially known as " scrambled eggs") on their combination covers. This is in contrast to other branches, where majors wear the appropriate covers of field-grade officers.

The United States Coast Guard used their own rank system until World War I. In 1916, discontent grew among Coast Guard Captains By law, they ranked below a Lieutenant Commander in the United States Navy despite similar roles and duties. The Appropriations Act of 1918, the Coast Guard adopted the Navy rank structure to prevent against disagreements over seniority.

There are two insignia used by lieutenant commanders. On service khakis and all working uniforms, lieutenant commanders wear a gold oak leaf collar device, similar to the ones worn by a majors in the USAF and Army, and identical to that worn by majors in the Marine Corps. In all dress uniforms, they wear sleeve braid or shoulder boards bearing a single gold quarter-inch stripe between two gold half-inch strips (nominal size). Above or inboard of the stripes, they wear their specialty insignia (i.e., a star for officers of the line, crossed oak leaves for Civil Engineer Corps, etc.).

Usage examples of "lieutenant commander".

I think, if Lieutenant Commander Bynum concurs, that the tech people will be better used by staying here.

Captain O'Neal, I regret to inform you that your wife, Lieutenant Commander Sharon O'Neal, was lost in action this morning at approximately oh-five hundred hours.

And Lieutenant Commander Uhlis, looking no grimmer than usual, reached out a hand to help her up.

In the dim, unhandy space between the tiles of the overhead and the base of the deck above, she followed the othersLieutenant Commander Frees, in this instanceand wished she knew more about Lieutenant Commander Bowry.

Obviously the lieutenant commander was as aware of me as I was of her until tonight.