What is the meaning of Haa?

A sigh.

The sound of heavy breathing when sexually aroused.

to have

Used to indicate that something exists (often with a certain property and/or in a certain location). Usually translated as there is/are or there exist(s)

to have (used in forming the perfect tense)

yes

water

four

to pick up (from the ground)

yes

obsolete typography of

obsolete typography of

four

our

The name of the Latin-script letter H/h.

ha (expressing triumph or discovery)

until

what, how

to have

yes

The name of the Latin-script letter H/h.

Source: wiktionary.org