だれdareka
1.

A term used to refer to an unspecified or unknown person, often indicating that the identity of this individual is not important or has not been established.

2.

A phrase that conveys the notion of a generic individual, someone who could be anyone, without specifying who that person might be.

3.

An expression employed to talk about a person in a light-hearted or teasing manner, particularly when the speaker knows the identity but chooses not to reveal it explicitly.

4.

A pronoun indicating the presence or involvement of an indeterminate individual, used in contexts where the specific identity is irrelevant or collectively understood.

Example:

「誰か車の中にいるのですか」「トムがいます」

だれかれ誰彼darekareたれかれ誰彼tarekareだれdareかれkareたれtareかれkare
1.

A term used to refer to several individuals without distinguishing between them, often implying an inclusive attitude toward all people in a given context.

2.

A word indicating an unspecified group of individuals, commonly used to signify "any person" or "various people" without identifying specific names.

3.

A phrase describing the act of engaging with or addressing people in a general way, highlighting a lack of distinction among individuals referenced.

Example:

誰彼かまわず良い顔ばかりしていると、そのうち八方美人としか思われなくなるよ。

だれdareかさんkasan
1.

An informal reference to an unspecified person, often implying familiarity or a shared understanding among the speakers.

2.

A playful way to refer to an individual whose identity is understood by both the speaker and the listener, usually adding an air of mystery or teasing.

3.

A colloquial expression used to denote a person whose name or identity is not disclosed, yet is recognized in context, often used to evoke curiosity or secrecy.