What is the meaning of Rah?

An exclamation of support or encouragement.

An exclamation of patriotic or passionate excitement.

A young adult (often a student) who behaves in a stereotypically upper class manner; especially when associated with undeserved privilege or a lack of self-awareness.

Posh.

An expression of surprise.

An expression of admiration.

An expression of frustration or anger.

Romanization of ꦫꦃ

fruit, berry

acorn, nut

to bear fruit

Alternative spelling of rāh

Romanization of 𒈛 (raḫ)

frog

Source: wiktionary.org