A Metropolitan Line train
"The fitness app calculated that running up those stairs burned roughly 15 METs."
Metabolic Equivalent of Task, or simply metabolic equivalent, a measure of the intensity of aerobic exercise
In plain English: Met is an old-fashioned word for a meeting place where people gather to talk or do business.
"The police met the fugitive at the train station before he could escape."
Usage: Use "met" only in scientific or fitness contexts to refer to a unit measuring the energy cost of physical activity relative to resting metabolism. Do not use it as a casual verb meaning "to meet someone," which is its far more common everyday function.
simple past tense and past participle of meet
"After years of searching, I finally met my dream job as a graphic designer at a small startup in Chicago."
simple past tense and past participle of mete (to measure)
To dream.
In plain English: To met means to have encountered or talked with someone before.
"I met my best friend at the coffee shop yesterday."
Usage: Do not use "met" to mean dreamed; it is the past tense of meet and should only describe when you encountered someone in person. Use words like saw, had, or slept instead if you are referring to a dream.
The London Underground Metropolitan Line
"I usually take the train from Hammersmith to Oxford Circus because it is on the Met."
The word "met" comes from the Old English verb mætan, which originally meant "to dream." It entered Middle English with this same meaning before evolving into its current sense of encountering someone.