I would describe the difference as adjective and noun. If something is foreign, its coming from abroad.
what is the difference between freight prepaid and freight prepaid abroad
the difference between permanent passport and foreign passport
In a foreign country
abroad, foreign
Abroad, foreign lands.
the factoring difference between the and you.
When traveling abroad, it's a good idea to have at least a basic understanding of foreign languages.
BOP current a/c records receipts from exports of goods and services sold abroad, payments for imports of goods and services from abroad, net interest income paid abroad, and net transfers abroad (such as foreign aid payments). It equals the sum of exports minus imports, net interest income, and net transfers. BOP capital a/c records foreign investment in Australia minus say Australian investment abroad. For more infor...(Doug, et..al:1953 6th edition: pp.544)
When foreign investments in our country are bigger than our country's investments abroad.
Try these two: born in a foreign country and/or born at large.
Abroad is defined as being in a foreign country. When used as a noun it means all foreign countries. When used as an adverb it can means overseas or outdoors.
When traveling abroad, it's a good idea to have at least a basic understanding of foreign languages.