This is the 638th most frequent Thai word.
เฟซบ
The Thai word "เฟซบ" is a short form of "เฟซบุ๊ก," meaning "Facebook."
Here, 'เฟซบุก' is the Thai transliteration of 'Facebook', and it is used as a subject of the verb 'use'.
ผมใช้เฟซบุกในการติดต่อเพื่อน.
I use Facebook to contact friends.
In this sentence, 'เฟซบุก' is used to indicate the platform (Facebook) where the action of decorating occurs.
แม่ตกแต่งรูปในเฟซบุกสวยมาก.
Mom decorates pictures on Facebook beautifully.
The word 'เฟซบุก' is used to specify the medium (Facebook) through which a message was sent.