xamsi -xas- gismu

x₁ is a sea/ocean/gulf/[atmosphere] of planet x₂, of fluid x₃; (adjective:) x₁ is marine.

Also atmosphere (= varxamsi, varsenta). See also daplu, djacu, lalxu, rirxe, tumla, vacri, zbani, ctaru.

lensisku

In notes:

bloklu: k₁ is the maritime culture of nation/ethos k₂.
blotcana: t₁ is a seaport/ferry terminal in transport system t₂ for boats/ships/vessels of type b₂ propelled by b₃.
blozeile'a: l₁=b₂ is a pirate aboard pirate ship b₁, stealing l₂, which is wrong according to z₂.
brajau: x1 is a big expanse of water, river/sea/lake
braxamsi: x₁=b₁ is an ocean on planet x₂ (default Earth) of fluid x₃.
cakcurske: x₁ is malacology based on methodology x₂.
ctaru: x₁ is a tide [cyclical/periodic expansion] in x₂ caused by x₃.
daplu: x₁ is an island/atoll/key of [material/properties] x₂ in surroundings/body x₃; x₁ is insular.
delfinu: x₁ is a dolphin/porpoise of species/breed x₂.
djacu: x₁ is made of/contains/is a quantity/expanse of water; (adjective:) x₁ is aqueous/[aquatic].
kircaiu: x₁ is a shark of species x₂
lalxu: x₁ is a lake/lagoon/pool at site/within land mass x₂.
no'ordo'yxas: Baltic Sea
odbenu: x₁ is a walrus of breed x₂.
polno: x₁ reflects Polynesian/Oceanian (geographic region) culture/nationality/languages in aspect x₂.
rirxe: x₁ is a river of land mass x₂, draining watershed x₃ into x₄/terminating at x₄.
salni: x1 is salty/briny to observer x2.
sonlyske: x₁ is malacology based on methodology x₂.
tedyxas: Earthsea universe in Ursula K. Le Guin's novels
tetfusi: x1 pertains to the Tethys Ocean in aspect x2, at time/in configuration x3
tumla: x₁ is a parcel/expanse of land at location x₂; x₁ is terrain.
vacri: x₁ is a quantity of air/normally-gaseous atmosphere of planet x₂, of composition including x₃.
varxamsi: x₁ is the atmosphere of planet x₂=v₂ (default Earth) of composition v₃.
varxasyske: s₁ is the atmospheric science of planet x2.
volmna: x₁ flies/swims through fluid x₂ using means of propulsion/lift x₃.
xas: Sea
xastorka: x₁ is a sea turtle of species x₂.
xasycakrespa: x₁ is a sea turtle of species x₂.
xasycurnu: c₁ is a sea worm of species c₂.
xasydanti: d₁ is a torpedo launched by d₂.
xasydja: x₁ is seafood of ingredients/contents x₂ of variety/type x₃ from sea/ocean/gulf/fluid body x₄
xasyjau: x₁ is seawater from ocean/sea x₂.
xasyjbama: j₁ is a sea mine with explosive material/principle j₂.
xasyjukni: j₁ is a crab/lobster/crayfish/shrimp/krill/[marine crustacean] of species j₂.
xasyske: s₁ is the oceanography/marine science of planet x₂.
xasysonli: x₁ is a shellfish of species/breed x₂.
zbani: x₁ is a bay in/of coast/shoreline x₂.