Common Meanings
1
zhè这
This/These; a demonstrative pronoun referring to something nearby in time, place, or object, similar to 'this' or 'these' in English.
这是我喜欢的书。
This is a book I like.
At this very moment; right now, referring to the time of speaking.
我这就出发。
I'm leaving right now.
2
zhèi这
A contraction of '这一' (zhè yī), used as a demonstrative pronoun meaning 'this' or 'these' when referring to quantity, not limited to a single item. For example, '这个' (this one), '这点儿' (this little bit), '这些年' (these years).
这个主意听起来不错。
This idea sounds good.