Explore each form from the oldest known stage to today.
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The kanji 弾 is a phono-semantic compound, formed by combining the semantic component 弓 (bow) with the phonetic component 単. Its original meaning in ancient China was "to shoot a bow" or "the elastic force of a bow." The character 単 was chosen for its sound ("tan" or "dan") and does not contribute semantically. The core concept is the stored energy within a bent bow, which is released to propel an arrow. Historically, the character evolved from this concrete meaning to encompass more abstract concepts of propulsion, repulsion, and rapid motion. This semantic extension naturally led to its application for modern projectiles, hence the meaning "bullet." The character also developed the common meaning "to play a stringed instrument" (as in 弾く - *hiku*), which derives from the same core action of plucking a string, an action physically analogous to releasing a bowstring. The on'yomi (Sino-Japanese reading) is "DAN," used in words like 弾丸 (*dangan* - bullet), while the kun'yomi (Japanese reading) is "hi.ku" (to play) and "tama" (bullet). The character arrived in Japan around the 5th century AD, imported as part of the Chinese writing system along with Buddhism and other cultural and administrative technology. It was incorporated into the Japanese lexicon, retaining its core meanings. A key linguistic note is the split in Japanese readings: the kun'yomi "tama" for "bullet" is a native Japanese word for a sphere or bead that was assigned to the kanji 弾, while "hiku" was assigned for the verb "to play." This demonstrates the complex process of adapting Chinese characters to the pre-existing Japanese language, where a single kanji could be used to represent multiple native concepts that aligned with its semantic range.