This is the 439th most frequent Chinese word.
字
Character; word; letter.
In this sentence, '字' refers to a written or printed character or symbol in a language.
这是一个好字。
This is a good character.
Here, '字' signifies a single written character, often implying its pronunciation or meaning.
这个字怎么读？
How do you pronounce this character?
In this sentence, '字' is used to represent the activity of handwriting or creating letters/characters.