trade balance vs trade gap

trade balance and trade gap both are nouns.

Word	Noun	Adjective	Verb	Adverb
trade balance	Yes	No	No	No
trade gap	Yes	No	No	No

As nouns, trade balance and trade gap are synonyms defined as:

trade balance and trade gap: the difference in value over a period of time of a country's imports and exports of merchandise

Other synonyms of trade balance include balance of trade, visible balance.

trade balance (noun)	trade gap (noun)
the difference in value over a period of time of a country's imports and exports of merchandise	the difference in value over a period of time of a country's imports and exports of merchandise