疲労（ひろう、hirou）
- fatigue

The Japanese word 疲労 (ひろう, hirou) directly translates to "fatigue," "exhaustion," or "weariness" in English. It refers to a state of being tired, either physically or mentally, due to exertion, stress, or illness. It encompasses a feeling of being drained of energy and experiencing a reduced ability to function normally. The word 疲労 emphasizes the state of feeling tired or worn out.

⚫︎仕事の疲労 Translation: Work fatigue / Work exhaustion ⚫︎精神的な疲労 Translation: Mental fatigue / Mental exhaustion ⚫︎長時間の運転で疲労を感じた。 Translation: I felt tired from driving for a long time.

疲労 is commonly used in both formal and informal contexts. It describes the state of being tired or worn out. It can be used to describe general tiredness or the specific cause of the tiredness. It’s useful in medical, work, or general life conversations.

疲労 is typically written in kanji as 疲労. The reading is ひろう (hiragana). There are no other common ways to write this word. The okurigana (suffix hiragana) is standard.

⚫︎ 疲れ (つかれ, tsukare) - tiredness, fatigue (more general) ⚫︎ 疲惫 (ひはい, hihai) - exhaustion (often implies mental or emotional exhaustion) ⚫︎ 倦怠感 (けんたいかん, kentaikan) - feeling of fatigue, languor ⚫︎ 疲労困憊 (ひろうこんぱい, hiroukonpai) - extreme exhaustion

⚫︎ 元気 (げんき, genki) - energy, vitality, health ⚫︎ 活気 (かっき, kakki) - vigor, energy, liveliness ⚫︎ 回復 (かいふく, kaifuku) - recovery

試験勉強で疲労がたまった。 ・Translation: I accumulated fatigue from studying for the exams. ・Explanation: This sentence explains that the fatigue came from the study for the exams.

その選手は試合後、激しい疲労の色を見せた。 ・Translation: That player showed signs of severe exhaustion after the match. ・Explanation: This example indicates that the player was extremely tired after the match.

The word 疲労 is a compound word formed from two kanji. 疲 (ひ, hi) means "tiredness," "fatigue," and 労 (ろう, rou) means "labor," "effort," or "toil." Together, they represent the state of feeling tired from labor or effort.