This is the 508th most frequent Lithuanian word.
greičio
"Greitis" means "speed" in English. "Greičio" is the genitive case of "speed."
The word 'greičio' is used in the genitive case to specify whose speed we are referring to, in this case, the car's speed.
Automobilio greičio matuoklis rodo per didelį skaičių.
The car's speed meter shows a number that is too high.
The word 'greičio' is used in the genitive case to denote the possession or relation, here related to the limits of speed (speed limits).
Nesilaikydami greičio apribojimų, vairuotojai gali gauti baudą.
By not adhering to speed limits, drivers might get a fine.
The word 'greičio' is used in the genitive case as part of a compound noun to describe an action related to speed, specifically the exceeding of speed limits.