The kanji 厄 primarily conveys the meaning of "misfortune," "calamity," "trouble," or "unlucky." It signifies an adverse event or a state of being afflicted by hardship or adversity. It often implies a negative situation that one must endure or overcome.

・On-yomi (音読み): ヤク ・Kun-yomi (訓読み): やく

⚫︎厄年（やくどし） Translation: unlucky year (a year considered to be a period of bad luck, particularly for certain ages). ⚫︎厄介（やっかい） Translation: trouble; nuisance; burden; bother. ⚫︎厄除け（やくよけ） Translation: warding off evil; protection against misfortune (often refers to rituals or amulets).

The kanji 厄 is a phono-semantic compound (形声文字). The left side is a radical called 阜（こざとへん）, which is related to a mound or land. The right side is 㕯, which is phonetic, representing the sound "yaku". Together, these components convey the idea of a difficult situation arising from a geographic location or condition. Initially, the character might have been associated with a "hill" or "mound" that presented an obstacle, hence the evolution to "misfortune" or "calamity."