- Expand is defined as to increase in size, unfold or spread out.
- An example of expand is someone making friends at a party.
- An example of expand is a pregnant woman's belly.
- An example of expand is someone gathering more knowledge about a topic.
expand definition by Webster's New World
- to spread out; open out; stretch out; unfold: the eagle expanded its wings
- to make greater in size, bulk, scope, etc.; enlarge; dilate; extend
- to enlarge upon (a topic, idea, etc.); develop in detail
- to work out or show the full form of (a contraction, mathematical equation, etc.)
Origin: Middle English expanden ; from Classical Latin expandere ; from ex-, out plush pandere, to spread, extend; akin to patere: see fathom
- to become expanded; spread out, unfold, enlarge, etc.
- to become affable, warmly communicative, etc.
expand definition by American Heritage Dictionary
verb ex·pand·ed, ex·pand·ing, ex·pands verb, transitive
- To increase the size, volume, quantity, or scope of; enlarge: expanded her store by adding a second room. See Synonyms at increase.
- To express at length or in detail; enlarge on: expanded his remarks afterward.
- To open (something) up or out; spread out: The bird expanded its wings and flew off.
- Mathematics To write (a quantity) as a sum of terms in an extended form.
- To become greater in size, volume, quantity, or scope: Air expands when heated. This critic's influence is expanding.
- To speak or write at length or in detail: expand on a favorite topic.
- To open up or out; unfold: The chair expands to form a day bed.
- To feel expansive.
Origin: Middle English expanden, to spread out, from Latin expandere : ex-, ex- + pandere, to spread; see petə- in Indo-European roots.
- ex·pandˈa·ble adjective
- ex·pandˈer noun