A-side: for SWAT operators, the front side of a building
ama: traditional Japanese free divers, best known for diving for pearls
ambo: ambulance
Aum Shinrikyo: Supreme Truth Cult, responsible for the sarin gas attack on the Tokyo subway system in 1995
B-side: for SWAT operators, the side of a building to their left as they approach the A-side
bizen: an unglazed style of Japanese pottery
bokken: solid wooden training sword, usually of oak
bushido: the way of the warrior
C-side: for SWAT operators, the side of a building to their right as they approach the A-side
CI: Covert Informant
D-side: for SWAT operators, the backside of a building (or, for irregularly shaped buildings, the side opposite the A-side)
daisho: katana and wakizashi together, the twin swords of the samurai; literally, “long-short”
dono: an honorific expressing great humility on the part of the speaker, more respectful than -san or even -sama
foxfire: magical lights said to be carried by foxes or fox-spirits
Fudo: a Buddhist deity, typically depicted as an angry, red-skinned demon with sharp horns and fangs, often wielding a sword and a lariat
gaijin: foreigner (literally “outsider”)
geisha: a skilled artist paid to wait on, entertain, and in some cases provide sexual services for clientele
gokudo: extreme, hard-core
gumi: clan (as in Kamaguchi-gumi)
haidate: broad armored plates to protect the thighs, usually of lamellar
hakama: wide, pleated pants bound tightly around the waist and hanging to the ankle
haori: a Japanese tabard (i.e., short, sleeveless jacket) characterized by wide, almost winglike shoulders, often worn over armor
hazmat: Hazardous Materials Team; alternatively, hazardous materials and items
Ikko Ikki: a peasant uprising, largely disorganized and only nominally Buddhist, whose political and economic influence endured for over a hundred years until the Three Unifiers quelled it in the late sixteenth century
kaigane: a sharp, stiff tool with a blade like a spatula used by ama to pry shellfish from rocks and coral
kaishaku: a samurai’s second, charged with virtually beheading him if he should cry out while committing seppuku
Kansai: the geographic region around Kyoto, Nara, and Osaka, and the locus of political power for nearly all of Japanese history
kappa: a water-dwelling mythological being, humanoid with reptilian features, with a topless head and a water-filled bowl in place of a brain
katana: a curved long sword worn with the cutting edge facing upward
kenjutsu: the lethal art of the sword (as opposed to kendo, the sporting art of the sword)
kiai: a loud shout practiced as a part of martial arts training, usually uttered upon delivering a strike
kiri: a paulownia blossom, the emblem of Toyotomi Hideyoshi
koku: the amount of rice required to feed one person for one year; also, a unit for measuring the size of a fiefdom or estate, corresponding to the amount of rice its land can produce
MDA: methylenedioxyamphetamine, a hallucinogenic amphetamine
Mount Hiei: a mountain overlooking the city of Kyoto, home to hundreds of monasteries and the traditional locus of political power for Buddhism in Japan
odachi: a curved greatsword
oyoroi: “great armor”; a full suit of yoroi armoring the wearer from head to toe; literally “great armor”
Raijin: demonic god of lightning, thunder, and storms
ri: a unit of measurement equal to about two and a half miles
rikishi: sumo wrestler
ronin: a masterless samurai (literally “wave-person”)
Ryujin: dragon-god of the sea
sama: an honorific expressing humility on the part of the speaker, more respectful than -san but not as humbling as -dono
sarin: a potent neurotoxin
seiza: a kneeling position on the floor; as a verb, “to sit seiza” means “to meditate” (literally “proper sitting”)
sensei: teacher, professor, or doctor, depending on the context (literally “born-before”)
seppuku: ritual suicide by disembowelment, also known as hara-kiri
shakuhachi: traditional Japanese flute
shamisen: traditional Japanese lute
shinobi: ninja
shoji: sliding divider with rice-paper windows, usable as both door and wall
sode: broad, panel-like shoulder armor, usually of lamellar
SOP: Standard Operating Procedure
southern barbarian: white person (considered “southern” because European sailors were only allowed to dock in Nagasaki, which lies far to the south)
sugegasa: broad-brimmed, umbrella-like hat
Sword Hunt: an edict restricting the ownership of weapons to the samurai caste; there were two such edicts, each one carrying additional provisions on arms control and other political decrees
tachi: a curved long sword worn with the blade facing downward
taiko: an enormous drum; alternatively, the art of drumming with taiko
temari: embroidered silk thread balls; alternatively, the craft of making temari
tengu: a goblin with birdlike features
Tokaido: the “East Sea Road” connecting modern-day Tokyo to modern-day Kyoto
tsuba: a hand protector, usually round or square, where the hilt of a sword meets its blade; the Japanese analogue to a cross guard
wakizashi: a curved short sword, typically paired with a katana, worn with the blade facing upward
washi: traditional Japanese handmade paper
yakuza: member of an organized crime syndicate; “good-for-nothing”
yoroi: armor
yukata: a light robe
yuki-onna: a predatory winter-spirit that hunts on snowy nights, taking the form of a pale (usually naked) and very beautiful woman