CJK Unified Ideograph-789E

It means steep, craggy rock; 民碞 is the disputed exception.

碞 belongs to an older rock-word vocabulary. Its dictionary explanation is piled, high stone, with a pronunciation tied to 岩: a word for harsh, lofty rock terrain. The sources checked for this page present no one-off inventor, only textual and lexicographic transmission.

The earliest secure witness in this trail is the Eastern Han Shuowen Jiezi entry, which quotes the Zhou-era 召誥 line containing 民碞. There the glosses split: one tradition reads popular transgression beyond proper order, while later commentary reads the dangerous unevenness of popular sentiment and calls the older gloss mistaken. Translate 民碞 from its edition or note, never by forcing rock into it.

Someone sent me 碞 — what do they mean?

Alone, it means almost nothing; ask for the source.

The split belongs to classical politics, not to modern slang. As a steep-rock word, 碞 survives mainly through dictionaries and one quoted Zhou sentence about the danger or disorder of the people. A lone 碞 in chat carries no reliable mood, joke, or insult.

Philologists connect it with 嵒 and 岩/巖, describing 碞 as a later form that swaps the mountain component for stone. That is history, not permission to use 碞 wherever 岩 appears.

Use 岩 for ordinary modern writing.

If you mean everyday rock or cliff, write 岩. Reserve 碞 for quoting a classical passage, discussing a dictionary form, or preserving an archaic graph.

Typing it is a lookup job. Search the Mandarin reading yan in a Chinese IME, open the rare-character candidates if 岩 and 严 bury it, or copy it from the palette above. If it arrives as a box, switch Han fonts; the installed font draws this character.