This is the 321st most frequent Thai word.
mrt
The Thai word "mrt" does not have a meaning in Thai; it may be a transliteration error or abbreviation.
Here, 'MRT' is used as a proper noun representing the name of the subway system.
รถไฟฟ้าใต้ดินในเมืองเรียกว่า 'MRT'
The subway in the city is called 'MRT'.
In this case, 'MRT' refers to the means of transportation, specifically the subway system.
ฉันนั่ง MRT ไปทำงานทุกวัน
I take the MRT to work every day.
Here, 'MRT' is used descriptively to refer to the newly established subway system.