Tangut ideograph 18560

It is a Tangut case marker, commonly analyzed as ergative.

In Tangut grammar, “ergative” is a label for a marker associated with the doer in a transitive sentence, where someone acts on someone or something else. Other analyses call 𘕠 the “fortified nominative” or place it in a broader system of core and target relations. The words around it determine its role.

It is a piece of grammar, not a standalone word with a fixed English translation.

Is 𘕠 a Chinese character?

No. Tangut is a separate script for the Tangut language.

In 1036, Western Xia ruler Li Yuanhao had the script created for state-building, including translation of Buddhist works into Tangut. Its design drew inspiration from Chinese writing and the earlier Khitan script, but it wrote a different language. Later surviving works include Buddhist scriptures, legal texts, Confucian works, military treatises, and literature. The date is for the script's creation, not the first appearance of this individual character.

What if someone sends 𘕠 to me?

Treat it as Tangut text, not as a mood signal.

A single 𘕠 has no dependable chat mood. Ask whether it is quoted from Tangut text, part of a discussion of the script, or a font-coverage check; the surrounding passage tells you what grammatical work it does.