苦労【くろう】
trouble, hardship, difficulty, labour, labor, toil, pains, anxiety, worry, concern, cares
苦しむ【くるしむ】
to suffer, to groan, to be worried
苦手【にがて】
poor (at), weak (in), not very good (at), not one's cup of tea, not one's favorite
苦しい【くるしい】
painful, difficult, tough, hard, distressing, (psychologically) difficult, stressful, awkward (e.g. position), straitened (circumstances), tight (financial situation), needy, struggling, strained (interpretation, explanation, etc.), lame (e.g. excuse), forced (e.g. smile), far-fetched, hard to do, unpleasant
苦しみ【くるしみ】
pain, anguish, distress, suffering, hardship
苦しめる【くるしめる】
to torment, to pain, to inflict (physical) pain, to hurt, to harass, to cause (emotional) pain, to afflict, to distress, to bother, to trouble, to stump, to baffle
苦境【くきょう】
difficult situation, adverse circumstances, predicament, trouble, dilemma, distress
苦慮【くりょ】
racking one's brains, worrying oneself, being anxious
苦難【くなん】
suffering, distress, hardship, trial
苦渋【くじゅう】
bitterness, distress, pain, anguish, affliction, bitterness and astringency
苦肉の策【くにくのさく】
last resort, desperate measure taken under the pressure of necessity
苦言【くげん】
candid advice, frank advice, honest opinion, exhortation, harsh but honest advice
苦心【くしん】
pains, hard work, effort, trouble, labour, labor
苦闘【くとう】
hard fight, difficult struggle
苦杯【くはい】
bitter cup, bitter experience, bitter defeat, ordeal
労苦【ろうく】
labor, labour, toil, hardship
生活苦【せいかつく】
life's struggles
苦楽【くらく】
pleasure and pain, joys and sorrows
苦笑【くしょう】
bitter smile, wry smile, strained laugh, sarcastic laugh
苦労人【くろうにん】
worldly-wise man