Expandto become larger or to make something larger means to become larger, to make something larger, or to explain something in more detail. It can also mean to spread out or grow in influencethe power to affect people, events, or decisions, size, or activitythings that happen, are done, or keep people busy.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /ɪkˈspænd/
Easy pronunciation: ik-SPAND (approximate spelling).
Stress: Stress the second syllable.
Primary sense: become larger in size or volume.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.
Expand Meaning
to get bigger
Part of speech: verb
Definition: become larger in size or volume
Example: The dough expands as it rises.
Synonyms for this meaning:
- enlarge — A common close synonym when something gets bigger.
- spread out — Works when something opens out or covers more space.
- grow — A natural substitute in many everyday contexts, though it is broader than expand.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.
Other Meanings of Expand
Meaning 2
to increase the size or amount of something
Part of speech: verb
Definition: make bigger or wider in size, volume, or quantity
Example: They plan to expand the house by adding another wing.
Synonyms for this meaning:
- enlarge — Fits when something is made physically bigger.
- extend — Works when something is made to cover more distance or area.
Meaning 3
to explain something in more detail
Part of speech: verb
Definition: add details to an account or idea; explain it more fully
Example: Could you expand on that point?
Synonyms for this meaning:
- elaborate — A strong synonym in speech and writing.
- expound — More formal, often used for ideas or arguments.
- flesh out — Common in modern English for adding detail.
- dilate — Meaning 'discuss at length'; formal and less common.
- exposit — Formal and mainly used in careful exposition.
Meaning 4
to increase the reach or influence of something
Part of speech: verb
Definition: expand the influence of
Example: The campaign expanded its influence across the region.
Synonyms for this meaning:
- extend — Works when influence or reach becomes wider.
Meaning 5
to do very well or become very successful
Part of speech: verb
Definition: grow vigorously
Example: The company expanded quickly during the boom.
Synonyms for this meaning:
- flourish — A good fit for healthy growth or success.
- thrive — Works when a business or person does well.
- boom — Often used for a period of fast growth, especially in business.
Meaning 6
to make something seem larger or more important than it is
Part of speech: verb
Definition: exaggerate or make bigger
Example: He expanded the story to make it sound more dramatic.
Synonyms for this meaning:
- amplify — Can mean to make something seem stronger or larger, including an idea or story.
- inflate — Works when something is made to seem bigger than it really is.
- blow up — Informal; can mean to exaggerate, but is less precise.
Meaning 7
to increase in size or amount
Part of speech: verb
Definition: become larger in size or volume or quantity
Example: His business expanded rapidly.
Synonyms for this meaning:
- enlarge — Useful when a thing becomes larger overall.
- extend — Works when growth includes greater length, reach, or coverage.
Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.
Expand Synonyms
Similar Meaning
- enlarge
- extend
- elaborate
- flesh out
- expound
to explain something in more detail
- elaborate
- flesh out
- expound
to grow or do very well
- flourish
- thrive
- boom
to exaggerate or make bigger than it is
- amplify
- inflate
- blow up
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.
Common Mistakes
- Do not use expand as if it always means 'explain'—that is only one sense.
- Do not mix up the physical sense of expand with the figurative sense of expand an idea, business, or influence.
- Expand is not the same as contract, which means to become smaller or narrower.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What does expand mean in simple English?
Expand means to get bigger, to make something bigger, or to explain something in more detail.
What is the most common meaning of expand?
The most common everyday meaning is to become larger or to make something larger.
What are good synonyms for expand?
Good synonyms depend on the sense. For getting bigger, use enlarge or extend. For explaining more, use elaborate or flesh out.
Is expand the same as grow?
Sometimes. Grow is broader and more general, while expand usually suggests becoming wider, larger, or more extensive.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-12. AI assessment; not a guarantee of accuracy.