What is the meaning of ?

a circle

A female family member in a family tree.

An unidentifiable or indeterminate segment.

Oxygen (Daltonian symbol).

A white stone.

circle

correct, check mark, good

Placeholder for a kanji or kana.

  1. Used to indicate a space to be filled in.

    Used to indicate a space to be filled in.

    Used to censor or obscure individual characters.

    Source: wiktionary.org