I have a few additions.
Common Sayings/Phrases:
Banzai! - Lit. "Ten Thousand", used as a cheer.
Gokigen'yo - A formal greeting/farewell.
Concepts:
Gyokusai - Lit. "Shattered Jade" used in reference to suicide attacks or suicide in face of defeat
Formal:
-Shi - used in formal writing and very formal speech for referencing a person unfamiliar to the speaker (such as the Coordinator, to most people).
Draconis Combine-Specific:
Arm of the Dragon - Combined military forces of the DC, particularly the 'Mech forces.
Claws of the Dragon - A dragon has five claws on each of its forelimbs, each represents a Military District.
The Dictum Honorium - The book detailing the codes of conduct, first published by Omi Kurita I in c2360.
Dragon Days - The period of time when, due to physical location and/or seasonal changes, a portion of the world experiences extended darkness
Dragon's Blood - Another name for Jewelblood, a rare and precious gem-like substance.
Dragon's Breath - A reference to the ISF.
Dragon's Dove - The only friend of a dragon is a small, pale blue dove. Refers to any valuable service rendered by a lesser subject, or to needed assistance from an unexpected source.
Dragon's Joy - The feeling of ecstasy that a Dragon experiences when a citizen fulfill his routine duties for the benefit of the Dragon.
Dragon's Lair - A place of guaranteed safety.
Dragon's Seeds - New worlds conquered by the dragon.
Dragon's Tears - The dragon cries a single tear every time it is wounded. Refers to any Bushi or support staff killed in combat while in service to the dragon.
Dragon's Teeth - Informal name for the Draconis Household Guard.
Dragon's Time - The period of time between sunset and sunrise.
Duke of the Dragon - The Duke of Luthien
The First Egg - Shiro Kurita, the founder of the Draconis Combine.
Eyes of the Dragon - The sole vulnerable part of a dragon.
Fist of the Dragon - The Gunji-no-Kanrei.
Heart of the Dragon - The sum of manpower, resources and facilities possessed by the Draconis Combine.
Pillars of the Dragon - The Five Pillars of Society: Gold, Ivory, Steel, Teak and Jade.
Pillar of Gold - The Government, the Coordinator.
Pillar of Ivory - Faith, philosophy, codes of conduct.
Pillar of Steel - The Military.
Pillar of Teak - The culture and arts of the Combine.
Pillar of Jade - The Economy, wealth, and commerce.
Prince of the Dragon - The Prince of Luthien, heir apparant to the Coordinator.
Smile of the Dragon - The dragon only smiles when it has defeated a worthy foe.
Sons of the Dragon - The loyal and faithful followers of the dragon.
Virtues of the Dragon - The dragon possesses five virtues: Bravery, Tenacity, Audacity, Integrity, and Wisdom.
The Yellow Bird - The only real enemy of the dragon. Refers to the fact that any enemy can be a danger, no matter how small.
