lieutenant junior grade lieutenant junior grade /lʊˈtɛnənt ˈdʒuːniər greɪd/

noun

1. (military) an officer holding a commissioned rank in the United States Navy or United States Coast Guard; below lieutenant and above ensign  ( lieutenant JG , lieutenant junior grade )
   (military) an officer holding a commissioned rank in the United States Navy or United States Coast Guard; below lieutenant and above ensign
   
   

 chord chord /ˈkɔrd/

noun

1. () A combination of three or more notes that blend harmoniously when sounded together  ( chord )
   a combination of three or more notes that blend harmoniously when sounded together
    The pianist struck a resonant chord, setting the mood for the concert.
   The pianist struck a resonant chord, setting the mood for the concert.
   
   
2. () A straight line connecting two points on a curve  ( chord )
   a straight line connecting two points on a curve
    The architect drew a chord to determine the curve's exact measurements.
   The architect drew a chord to determine the curve's exact measurements.
   
   

verb

1. (music) bring into consonance, harmony, or accord while making music or singing  ( chord , harmonise [British] , harmonize )
   (music) bring into consonance, harmony, or accord while making music or singing
   
2. (music) play chords on (a stringed instrument)  ( chord )
   (music) play chords on (a stringed instrument)
   

 fire control radar fire control radar /'faɪər kən'troʊl 'reɪdɑr/

noun

1. (military) naval radar that controls the delivery of fire on a military target  ( fire control radar )
   (military) naval radar that controls the delivery of fire on a military target
    The fire control radar helps in precise targeting during naval operations.
   The fire control radar helps in precise targeting during naval operations.
   
   

 water chestnut water chestnut /ˈwɔːtər ˈtʃɛstˌnʌt/

noun

1. Edible bulbous tuber of a Chinese marsh plant  ( water chestnut )
   edible bulbous tuber of a Chinese marsh plant
   
2. Chinese sedge yielding edible bulb-shaped tubers  ( Chinese water chestnut , Eleocharis dulcis , water chestnut )
   Chinese sedge yielding edible bulb-shaped tubers
   
3. A plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits  ( caltrop , water chestnut , water chestnut plant )
   a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits