吃紧

吃紧	chī jǐn	in short supply / dire / tense / critical / hard-pressed / important
吃	chī	to eat; to consume / to eat at (a cafeteria etc) / to eradicate; to destroy / to absorb / to suffer (shock, injury, defeat etc)
吃	chī	variant of 吃
紧	jǐn	tight / strict / close at hand / near / urgent / tense / hard up / short of money / to tighten