Definition of expand
1 : to open up : unfold
2 : to increase the extent, number, volume, or scope of : enlarge
3a : to express at length or in greater detailb : to write out in full expand all abbreviationsc : to subject to mathematical expansion expand a function in a power series
1 : to open out : spread
2 : to increase in extent, number, volume, or scope
3 : to speak or write fully or in detail expanded on the theme
4 : to feel generous or optimistic
expandabilityplay \ik-ˌspan-də-ˈbi-lə-tē\ noun
expandableplay \ik-ˈspan-də-bəl\ adjective
Examples of expand in a Sentence
The liquid expands and contracts with changes in temperature.
His business has expanded to serve the entire state.
The coffee shop may expand into a full restaurant.
He has expanded his business to serve the entire state.
There are plans to expand the airport.
The police have decided to expand their investigation.
She plans to expand the lecture series into a book.
Expand the abbreviation “deg.” to “degree.”
Recent Examples of expand from the Web
South Korean shipments abroad, a useful indicator of global demand, expanded almost 14 percent in June from a year earlier, an eighth straight month of gains.
At launch, the buses will run only between Los Angeles and San Francisco, but the company plans to expand service to additional cities.
Dr. Lawrence Spinelli is director of outreach at the Overseas Private Investment Corporation, which will host its Expanding Horizons workshop in Cincinnati on Aug. 18.
As the food-stamp program expanded nationally, there was an explosion of EBT cards’ showing up in drug arrests.
In May 2015, McFarland announced that the Magnises clubhouse was expanding to larger quarters, a three-story penthouse atop the Hotel on Rivington, on the Lower East Side.
And over time, as the population ages, more and more funding will have to be appropriated to a more expensive, expanding set of disabled elderly enrollees, even as states receive less and less for them over time.
Metro Ports President Michael Ferguson said Indiana was an obvious choice for the company to expand into the Midwest and establish a Great Lakes presence.
Ahold Delhaize’s Peapod is expanding its push into New York City after spending $94 million to put a warehouse in Jersey City, N.J., one of several expansions the operators are undertaking to build up what remains a niche business.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expand'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Synonym Discussion of expand
EXPAND Defined for English Language Learners
Definition of expand for English Language Learners
: to increase in size, range, or amount : to become bigger
: to cause (something) to increase in size, range, or amount : to make (something) bigger
: to write (something) in full form
EXPAND Defined for Kids
Definition of expand for Students
1 : to grow or increase in size, number, or amount The airport is expanding.
2 : to open wide : unfold The eagle's wings expanded.
3 : to take up or cause to take up more space Metals expand under heat.
4 : to speak or write about in greater detail Would you expand on that idea?
Seen and Heard
What made you want to look up expand? Please tell us where you read or heard it (including the quote, if possible).