psi

Χχ${\displaystyle \longleftarrow }$ 23 ${\displaystyle \longrightarrow }$Ωω

Pronunciation

• enPR: psī or sī, IPA ^(key): /psaɪ/ or /saɪ/

• Audio (US)

  (file)

Noun

Singular psi

Plural psis

1. Twenty third letter of Greek.
2. Ψψ.

The Simple English Wikipedia has an article on:

Psi