- to increase in extent, size, volume, scope, etc.: Heat expands most metals. He hopes to expand his company.
- to spread or stretch out; unfold: A bird expands its wings.
- to express in fuller form or greater detail; develop: to expand a short story into a novel.
- Mathematics.
- to write (a mathematical expression) so as to show the products of its factors.
- to rewrite (a mathematical expression) as a sum, product, etc., of terms of a particular kind: to expand a function in a power series.
- to increase or grow in extent, bulk, scope, etc.: Most metals expand with heat. The mind expands with experience.
- to spread out; unfold; develop: The buds had not yet expanded.
- to express something more fully or in greater detail (usually followed by on or upon): to expand on a statement.
- to make or become greater in extent, volume, size, or scope; increase
- to spread out or be spread out; unfold; stretch out
- to enlarge or expatiate on (a story, topic, etc) in detail
- to become increasingly relaxed, friendly, or talkative
- to express (a function or expression) as the sum or product of terms
