酷暑

こくしょ

intense heat

猛暑

もうしょ

heat wave, fierce heat

酷寒

こっかん

severe (intense) cold, depth of winter

寒暑

かんしょ

hot and cold, summer and winter

酷暑日

こくしょび

day on which the temperature rises above 35°C; extremely hot day

猛暑日

もうしょび

extremely hot day (i.e. 35 degrees Celsius or greater)

酷

こく コク

severe, harsh, stringent, rigorous, strict, unfair

猛

もう

greatly energetic

暑

しょ

heat

峻酷

しゅんこく

severe (personality), unaffected by love

酷吏

こくり

an unsparing official

残酷

ざんこく

cruelty, harshness

酷熱

こくねつ

intense heat

酷悪

inhuman; wicked; evil

冷酷

れいこく

cruelty, coldheartedness, relentless, ruthless

惨酷

さんこく むごこく

atrocity, cruelty, brutality

酷似

こくじ

resemblance, resemble

酷遇

こくぐう

maltreatment

酷使

こくし

exploitation, overuse, abuse