tax
The financial sense of the word carries a heavy connotation of obligation and state power. It is rarely viewed as a voluntary contribution, but rather as a mandatory extraction of wealth to fund public infrastructure or social services. This creates a persistent tension in usage, often associated with feelings of burden or resentment. When used as a verb regarding effort, the word evokes a sense of stretching something to its absolute limit. It suggests a process of depletion where a resource is being used up almost entirely, moving beyond simple effort into the realm of exhaustion or strain.
Countable when referring to a specific type of levy like a sales tax or a luxury tax. Uncountable when referring to the general system of taxation or the total amount of money paid to the state.