䨻

Ideogrammatic compound:

Composed of four 雷 (뢰, thunder) characters arranged in a 2×2 grid.

Represents an intensified or multiplied sound of thunder.

First attested in the Song dynasty dictionary 《廣韻》(광운).

Appears in the reduplicated form 䨻䨻, describing rolling or booming thunder.

Considered a rare and archaic character; not found in early inscriptions, since 雷 had already become the standard character for "thunder."

Sometimes discussed in philological contexts as a “quadruple 雷,” comparable to other multi-component exaggerative characters.

There exists a more complex, speculative ancestor 𤴐 (32 strokes, archaic form of 雷). By theoretical extension, a quadruple form of 𤴐 would yield a character of 128 strokes, though no historical evidence supports its use.

In extreme speculation, the 52-stroke variant ⿳𤳳霝⿲田田田 (an ornate form of 雷) could be quadrupled to create a character with 208 strokes, but this is purely hypothetical.

Recognized in Unicode CJK Extensions, mainly for completeness of character sets, not for modern usage.