shortage, scarcity

run low, lack, run short

area, district, particular geographic region

serious, deep, heavy (topic), profound (change), weighty (matter)

seriousness

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

water (sometimes cold and/or fresh) / drinking water / a fluid, liquid / a flood / (sumo) Short for 水入り (mizuiri): halting

abulia (absence of will-power or decisiveness)

becoming more serious

become more serious