The kanji 墜 primarily conveys the meaning of "to fall," "to collapse," or "to crash." It implies a downward movement, often with a loss of control or a sudden, dramatic descent. It can describe a physical action, like something falling from a height, or a more figurative loss, like a decline in status or the collapse of a structure.

・On-yomi (音読み): ツイ (tsui) ・Kun-yomi (訓読み): お墜（お墜（お墜（otsui） is a verb, derived from the kanji itself.

⚫︎ 墜落（ついらく） Translation: Fall; crash; falling; crash; descent ⚫︎ 転墜落（てん墜らく） Translation: A fall; a tumble; a fall; a tumble; a downfall ⚫︎ 墜墜落事故（つい墜らくじこ） Translation: A crash accident; a falling accident

The kanji 墜 is a phono-semantic compound (形声文字, keisei moji). The semantic component is 坴 (lu) representing "high ground" or "earth." The phonetic component is 隊 (tai), which suggests the sound. Together, they combine to depict something "falling" from a "high" place or ground. This formation effectively portrays the action of descending or crashing.