butterfly
A1Pronunciation
UK
- /bˈʌtəflˌaɪ/
US
- /ˈbətərˌflaɪ/
Meanings
Noun
an insect with large often colorful wings
a swimming stroke with both arms moving forward together
(informal)a fluttery nervous feeling, usually in the plural
More meaningsFewer meanings
(informal)a very sociable person who moves easily among groups
Verb
to split food open and spread it flat before cooking
Beyond the definition
A butterfly isn't just a pretty sight—it has become a symbol of change. These winged insects begin life as caterpillars, then transform inside a chrysalis before emerging with delicate wings and bright colors. That life cycle is why many cultures connect the creature with renewal, hope, and transformation.
You might see butterflies flitting around gardens, sipping nectar from flowers. But "butterfly" isn't always about insects. We also use it to describe someone who is socially active and flits from person to person—a "social butterfly" enjoys mingling in groups, while a "butterfly mind" shifts quickly between ideas and has trouble focusing. The phrase "butterfly effect" describes how small changes can lead to huge consequences.
The word "butterfly" most commonly refers to insects in the Lepidoptera order, known for their brightly colored wings and graceful daytime flight. Their life cycle is a clear example of metamorphosis: an egg hatches into a larva (caterpillar), then into a pupa (chrysalis), and finally into a winged adult. This transformation has made butterflies symbols of renewal, hope, and change in many cultures.
But "butterfly" can also describe people and ideas. We use it for someone who is socially active and moves easily through crowds—a "social butterfly" enjoys meeting people and building connections. In contrast, a "butterfly mind" suggests someone who is easily distracted or jumps from one thing to another. The phrase "butterfly effect," popularized by chaos theory, refers to how small changes in initial conditions can produce unexpectedly large outcomes over time, as in the famous image of a tiny wing flutter shaping distant events.
You may also hear about "butterfly ballots"—the voting design that contributed to confusion and controversy in the 2000 U.S. Presidential election.
So, whether you're admiring a delicate insect in a garden, describing someone's social style, or thinking about unpredictable systems, "butterfly" tends to carry a meaning tied to change, motion, and unexpected impact.
Examples
- 1
Nature
A bright blue butterfly landed on the window.
- 2
Garden
In summer, the garden is full of butterflies.
- 3
Nervousness
I always get butterflies in my stomach before I speak in public.
- Phrasebutterflies in your stomach
a nervous feeling before something important
- 4
Sociable person
Mia is a social butterfly who seems to know everyone at the party.
- Phrasea social butterfly
someone who enjoys talking to many people
More examplesFewer examples
- 5
Swimming
He learned the butterfly when he joined the swim team.
- Domainthe butterfly
a swimming style
See also
Shades of meaning
- imago
Contrast
Used with (collocations)
- butterfly wings
- butterfly garden
- monarch butterfly
Explore
Forms and spellings
2 forms open this card.
Main spelling
- butterflynounverb
Forms
- butterfliespluralnounverb