This is the 548th most frequent Hebrew word.
ז
The Hebrew word "ז" is the seventh letter of the Hebrew alphabet, called "Zayin," and can also mean "this" (masculine singular) in informal contexts.
The word "זה" (pronounced "ze") is used here as a demonstrative pronoun meaning "this," identifying the referred object.
זה הבית שלי.
This is my house.
The word "זקן" (pronounced "zaken") means "old" and is describing the person's age.
האיש זקן וקשה לו ללכת.
The man is old and it is hard for him to walk.
The word "זרים" (pronounced "zarim") means "foreign," referring to currency that is from a foreign country.