What is the meaning of ?

The hiragana syllable (ha). Its equivalent in katakana is (ha). It is the twenty-sixth syllable in the gojūon order; its position is (ha-gyō a-dan, row ha, section a).

unique topic marker, often untranslatable

what about, where is (used without a predicate to ask for more information about something)

Inserted between two verbs for emphasis.

Used to show agreement or obedience: yes

Source: wiktionary.org