Chinese does not have an alphabet like English but rather is written in characters called hanzi. Typically each character stands for a word although a word can be made up of more than one character.
Tianjin is a city in China. It begins with the letter T.
Chen (陈) certainly is, but "Judy T" isn't. That doesn't mean whoever Judy T. Chen is isn't Chinese. Most Chinese people have their Chinese name as well as a "Western name". When they do this, it's not unusual for the middle name to be their actual Chinese first name. So maybe the "T" in Judy's name is her Chinese name, like "Tai" or "Tu".
It is the Chinese symbol for "Chinese". It also means "middle".
t
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern T-I-T-T-. That is, eight letter words with 1st letter T and 3rd letter I and 5th letter T and 7th letter T. In alphabetical order, they are: triptote tristate
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -T-T----T. That is, nine letter words with 2nd letter T and 4th letter T and 9th letter T. In alphabetical order, they are: statement statocyst
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -T--T-T-. That is, eight letter words with 2nd letter T and 5th letter T and 7th letter T. In alphabetical order, they are: steatite
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern T-T-IT-. That is, seven letter words with 1st letter T and 3rd letter T and 5th letter I and 6th letter T. In alphabetical order, they are: titbits
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern T---AT--T. That is, nine letter words with 1st letter T and 5th letter A and 6th letter T and 9th letter T. In alphabetical order, they are: thanatist
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern T-T--R--T. That is, nine letter words with 1st letter T and 3rd letter T and 6th letter R and 9th letter T. In alphabetical order, they are: tutiorist
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern T--T-T-C. That is, eight letter words with 1st letter T and 4th letter T and 6th letter T and 8th letter C. In alphabetical order, they are: tektitic
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -T-T-T-S. That is, eight letter words with 2nd letter T and 4th letter T and 6th letter T and 8th letter S. In alphabetical order, they are: statutes