Countries or lands abroad.
"The company sent its best engineers to work abroad in several Asian countries to help launch the new product line."
"She decided to spend her retirement abroad in a quiet coastal village."
Usage: Do not use "abroad" as a noun to refer to foreign countries; it is an adverb that describes being outside one's home country. Instead, use the phrase "countries abroad" or simply "foreign lands" when you need a specific noun for those places.
Beyond the bounds of a country; in foreign countries.
"She decided to spend her gap year abroad, exploring cities in Japan and Italy before returning home."
In plain English: Abroad means somewhere outside your own country.
"He has been living abroad since last winter and misses home."
Usage: Use abroad to indicate that an action or location is outside your own country, such as studying abroad or working abroad. It functions as an adverb and does not require a preposition like "in" before it when referring to foreign nations generally.
Throughout, over.
"The news about the scandal spread abroad to every corner of the country within hours."
The word abroad first appeared in the mid-13th century from Middle English abrood, which originally meant "broadly" or "widely scattered." It entered English by combining the prefix a- with brood (related to broad) to describe something spread out over a wide area.