What is the meaning of ça?

alternative form of çë (“what”)

to break, split

here; in this place

that (distal demonstrative pronoun)

this (proximal demonstrative pronoun)

it (alternative form of ce as a subject of être in tenses other than the present and imperfect indicative)

it, that, they, them (reduplicated pronoun referring to an indefinite or generic noun phrase)

it (dummy pronoun)

used to indicate actions happening generally without specifying an agent, like on but with a greater suggestion of mass, generalized, unattributable, or confused action; people

creates isolated emphatic forms of the interrogatives qui, où, quand, comment and pourquoi

he, she, it (third-person singular subject pronoun)

him, her, it (third-person singular object pronoun)

they (third-person plural subject pronoun)

them (third-person plural object pronoun)

what

alternative form of ça que (“that which, what”)

id

tea

Source: wiktionary.org