boundary
noun
a line or limit where one thing ends and another begins, or something that indicates such a line or limit.
boundaries
-
pluralof boundary.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
At the center of this expansion has been a strategy to tap in to people’s interests and hobbies—the Danish toy-brick maker calls them “passions”—many of which cross demographic boundaries.
From The Wall Street Journal ● Oct. 18, 2026
But in theory, there are at least some legal boundaries.
From Slate ● Oct. 17, 2026
"This distinction crowns more than 10 years of research, testing and commitment to pushing the boundaries of electric and solar-powered flight," SolarStratos said.
From Barron's ● Oct. 16, 2026
Against South Africa, the left-hander hit only three boundaries on day one - he attacked only 14.2% of deliveries in making his first 50 runs, the lowest figure of the Australia's top order.
From BBC ● Oct. 10, 2026
In an instant I could see, I could feel, how the boundaries were drawn.
From "Born a Crime: Stories from a South African Childhood" by Trevor Noah
