This is the 977th most frequent Thai word.
ขวบด
It seems "ขวบด" may contain a typographical error. If you meant "ขวบ," it means "year" (used for counting the age of young children).
The term 'ขวบ' denotes years of age, specifically used when referring to younger children.
เด็กน้อยคนนี้อายุห้าขวบดีแล้ว
This young child is already five years old.
The word 'ขวบ' denotes a specific period or a single year in the context of past age.
ในสมัยขวบหนึ่ง ท่านยังเป็นเด็กที่มีความซุกซนอยู่มาก
In the past year, he was still a very playful child.
The word 'ขวบ' is utilized to describe a nominative time period equivalent to a year, related to age or growth.