瓶

A vessel with a constricted neck. In early contexts, the pottery radical (瓦) indicates fired clay; later usage extends to other materials.

The glyph covers various sizes and functions: domestic containers for liquids (generally more slender/narrow-necked than 壺); small vials for medical or alchemical use; and ritual water flasks (//kundika//) in Buddhist contexts.

U+7F3E is a graphical variant with no change to the lexical range.

The component 萍 (duckweed) serves as a phonetic element only; there is no semantic connection to plants in the glyph's construction.

In liturgical contexts, "flask" or "vase" is generally more appropriate than "bottle." Assume ceramic unless the text suggests otherwise.