Tianjin vs T'ien-ching

Tianjin and T'ien-ching both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tianjin	Yes	No	No	No
T'ien-ching	Yes	No	No	No

As nouns, Tianjin and T'ien-ching are synonyms defined as:

Tianjin and T'ien-ching: a major industrial center in northeastern China on the Grand Canal near the Yellow Sea; 3rd largest city in China

Other synonyms of Tianjin include Tientsin.

Tianjin (noun)	T'ien-ching (noun)
a major industrial center in northeastern China on the Grand Canal near the Yellow Sea; 3rd largest city in China	a major industrial center in northeastern China on the Grand Canal near the Yellow Sea; 3rd largest city in China