cost (amount of money, or other valuable things, required for something) / cost (amount of money, or other valuable things, required for something); cost (value associated with the traversal of an edge) / difficulty (obstacles that hinder the achievement of a goal) / cost (negative consequence)

first-person singular present indicative of custar

cost of living (the average cost of a standard set of basic necessities of life)

at all costs; whatever it takes