What is the meaning of 피?

blood (bodily fluid)

kinship, consanguinity

health point

cockspur grass (Echinochloa crus-galli)

The name of the Latin-script letter P/p.

phi (name of the Greek, Ancient Greek letter φ)

-ed, -ee (marks the passive recipient of an action)

A hwatu playing card of the lowest rank, usually depicting only the plant corresponding to the card's suit.

皮:

彼:

疲:

被:

避:

披:

陂:

詖:

鞁:

髲:

blood

Source: wiktionary.org