What is the meaning of Oo?

(Ω, ω) The Greek letter omega.

Any of four Hawaiian birds of the genus Moho, formerly classed with the honeyeaters and now believed to be extinct.

Alternative form of ooh

yes

to be (something)

inflection of olla:

  1. present indicative connegative
  2. second-person singular imperative
  3. second-person singular imperative connegative

present indicative connegative

second-person singular imperative

second-person singular imperative connegative

one

one

first

Alternative form of O.

you

oh!

A letter of the Tlingit alphabet, written in the Latin script.

head

The name of the Latin-script letter O/o.

The name of the Latin-script letter O/o.

inflection of olla:

  1. present active indicative connegative
  2. second-person singular imperative
  3. second-person singular imperative connegative

present active indicative connegative

second-person singular imperative

second-person singular imperative connegative

you

wool

fluff

Alternative form of we

that

and (in verb and adjective constructions)

yes

feces; excrement; dung

Obsolete form of uo.

The name of the Latin-script letter O/o.

business, trade

to be heavy

Source: wiktionary.org