Dairen vs Dalian

Dairen and Dalian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dairen	Yes	No	No	No
Dalian	Yes	No	No	No

As nouns, Dairen and Dalian are synonyms defined as:

Dairen and Dalian: a port and shipbuilding center in northeastern China on the Liaodong Peninsula; now a part of Luda

Other synonyms of Dairen include Talien.

Dairen (noun)	Dalian (noun)
a port and shipbuilding center in northeastern China on the Liaodong Peninsula; now a part of Luda	a port and shipbuilding center in northeastern China on the Liaodong Peninsula; now a part of Luda