tcadu -tca- gismu

x₁ is a town/city of metropolitan area x₂, in political unit x₃, serving hinterland/region x₄.

Also (adjective:) x₁ is urban. See also jarbu, nurma, cecmu.

In notes:

aftobuso: x₁ is a bus/coach for carrying passengers x₂, propelled by x₃
beiDJIN: Beijing.
brazilias: Brasilia.
bryklyn: Brooklyn, New York: a borough of New York City, at the western tip of Long Island.
buenosaires: Buenos Aires.
cangan: Hong Kong.
canxais: Shanghai.
cecmu: x₁ is a community/colony of organisms x₂.
cikagos: name: Chicago
cmatca: x₁ is a village in administrative area x₃ serving hinterland x₄ small by standard x₅.
jarbu: x₁ is a suburban area of city/metropolis x₂.
kuualalumpur: name: Kuala Lumpur
nilxa'ugri: n₁ (number) is the population of inhabitant group g₁ in area x₂ measured on scale n₂.
nurma: x₁ is a rural/rustic/pastoral area of x₂; x₁ is in the country.
raltca: x₁ is a/the capital of x₂.
taksi: x₁ is a taxi
tcabriju: b₁ is the city/town hall of city/town t₁
tcacpi: c₁ is a pigeon of subspecies c₂.
tcakamni: x₁=k₁ (mass/jo'u) is the city council/town board of x₂=t₁.
trutca: tc₁=tu₁ is the administrative capital (seat of government) of tu₂=tc₃ located in tc₃
urbe: x₁ is a general metropolitan area with (population, commercial, industrial, business, economic, infrastructural, vel sim.) center/focal point/downtown/main or dominating urban area x₂, with supporting semi-urban/inner suburban region x₃, more (outer) suburban region x₄, and exurban region x₅.
xonkon: Hong Kong.
xyngon: Hong Kong.