cocoon
gb/kəkˈun/ us/kəkˈun/
B2
English
Senses
0 senses
Noun
B2
entity
1
insect pupa’s silk case
A silk case where a caterpillar changes into an adult insect.
Usage pattern:
a cocoon (of [material])
Common mistake:
Don’t confuse cocoon (often made of silk) with chrysalis (the hard skin of some butterflies).
Synonyms
chrysalis (Often used for butterflies; not always a spun silk case.)
|
pupa case (A more general biological term.)
Antonyms
adult (The fully developed insect after metamorphosis.)
Collocations
spin a cocoon
|build a cocoon
|silk cocoon
|inside the cocoon
|emerge from a cocoon
|a moth cocoon
|a butterfly cocoon
|cocoon stage
|break out of the cocoon
|cocoon casing
Themes
nature
|animals
|biology
Examples
- The caterpillar spun a cocoon and disappeared for weeks.
- A moth emerged from its cocoon in the morning light.
- Scientists observed the insect developing inside the cocoon.
Learner examples
- The caterpillar made a cocoon.
- A butterfly comes out of a cocoon.
Noun
B2
entity
2
protective covering around something
A covering that wraps around something to protect it.
Usage pattern:
a cocoon of [material/thing]
Common mistake:
This meaning is often metaphorical; it can refer to comfort or protection, not only insects.
Synonyms
covering (More general; does not suggest being fully wrapped.)
|
shell (Usually harder and more rigid.)
|
wrap (Focuses on the material used to cover.)
Antonyms
exposure (The state of being unprotected and open to the elements.)
Collocations
a cocoon of blankets
|a cocoon of plastic
|a cocoon of insulation
|protective cocoon
|warm cocoon
|soft cocoon
|cocoon-like
|in a cocoon
|wrapped in a cocoon
|sealed in a cocoon
Themes
daily_life
|materials
|safety
Examples
- She pulled the duvet into a cocoon around her shoulders.
- The cables were protected by a cocoon of insulation.
- The fragile vase arrived in a cocoon of bubble wrap.
Learner examples
- I sat in a cocoon of blankets.
- The box was in a cocoon of plastic.
Noun
C1
state
3
safe, isolated way of living
A safe situation that keeps you away from the outside world.
Usage pattern:
live in a cocoon; a cocoon of [comfort/privilege]
Common mistake:
Often has a slightly critical tone, suggesting someone is too sheltered or disconnected.
Synonyms
bubble (Very common metaphor for being sheltered from reality.)
|
shell (Suggests emotional withdrawal or defensiveness.)
|
comfort zone (Focuses on avoiding challenge rather than isolation itself.)
Antonyms
engagement (Active involvement with other people or the wider world.)
|
openness (Willingness to experience new ideas, people, or risks.)
Collocations
live in a cocoon
|stay in a cocoon
|a cocoon of comfort
|a cocoon of privilege
|a cocoon of routine
|burst the cocoon
|escape the cocoon
|a social cocoon
|a digital cocoon
|a protective cocoon
Themes
emotions
|society
|lifestyle
Examples
- After the move, he retreated into a cocoon and stopped seeing friends.
- Working remotely can create a cocoon if you never leave the house.
- Growing up in a cocoon of privilege, she struggled to understand everyday costs.
Learner examples
- I don’t want to live in a cocoon.
- He stayed in a cocoon at home.
Verb
C1
action
4
wrap or enclose for protection
To cover someone or something completely to protect it.
Usage pattern:
cocoon [someone/something] (in/with [material])
Common mistake:
As a verb, it often takes an object (cocoon the baby in blankets), or is used in passive (be cocooned in).
Synonyms
wrap (More general; less sense of complete enclosure.)
|
encase (Often implies a firm or rigid covering.)
|
swaddle (Specifically wrapping a baby snugly.)
Antonyms
unwrap (Remove a covering.)
|
expose (Leave without protection or covering.)
Collocations
cocooned in blankets
|cocoon a baby
|cocoon the equipment
|cocoon the parcel
|cocooned in foam
|cocooned in plastic
|carefully cocooned
|fully cocooned
|cocooned for transport
|cocooned from the cold
Themes
daily_life
|safety
|materials
Examples
- They cocooned the statue in foam before shipping it.
- She cocooned the baby in a warm blanket.
- The new windows cocoon the apartment from street noise.
Learner examples
- I cocooned the glass in bubble wrap.
- She cocooned herself in a blanket.
Verb
C1
action
5
withdraw into safety and privacy
To stay away from other people in a safe, private place.
Usage pattern:
cocoon (yourself) (from [people/the world]); cocoon yourself in [place/thing]
Common mistake:
Often used reflexively (cocoon yourself) or in passive descriptions (was cocooned at home).
Synonyms
retreat (Focuses on moving away from others, not necessarily on being protected.)
|
withdraw (Often implies emotional distancing.)
|
hole up (More informal; suggests staying hidden somewhere.)
Antonyms
socialize (Spend time with other people.)
|
venture out (Leave a safe place and go into the outside world.)
Collocations
cocoon yourself at home
|cocoon yourself from the world
|cocoon at home
|cocoon in your room
|cocooned away
|cocooned from reality
|cocooned in routine
|cocooned in comfort
|cocooned with family
|cocooned indoors
Themes
emotions
|lifestyle
|relationships
Examples
- After the breakup, she cocooned herself from friends for a while.
- On rainy weekends, we tend to cocoon at home and watch movies.
- He cocooned in his office to finish the report.
Learner examples
- I cocoon at home on Sundays.
- She cocooned herself in her room.
Grammar
Dictionary form
cocoon
IPA
GB/kəkˈun/
US/kəkˈun/
Syllables & stress
co - coon (2 syllables)
Stress on 2nd syllable (coon)
Word forms
Noun
- Base: cocoon
- Plural: cocoons
Verb
- Base: cocoon
- 3rd Person Singular: cocoons
- Present Participle: cocooning
- Past: cocooned
Word family
Forms
cocoons
noun
cocooning
verb
cocooned
verb
Expressions
a cocoon of
1/ə kəkˈun əv/
fixed phrase
surrounding layer of something
A layer around something, often for protection.
Examples
- A cocoon of silence settled over the room after the announcement.
- He lived in a cocoon of comfort and didn’t notice the problems outside.
- The campsite felt safe in a cocoon of trees.
be cocooned in
1/bˈi kˈoʊkˈund ˈɪn/
fixed phrase
be wrapped and protected
To be covered all around by something.
Examples
- She was cocooned in blankets on the sofa.
- The guests were cocooned in luxury at the resort.
- The seeds are cocooned in a protective gel.
cocoon yourself in
1/kəkˈun jʊɹsˈɛlf ˈɪn/
fixed phrase
wrap yourself for comfort
To cover yourself with something warm and soft.
Examples
- She cocooned herself in a hoodie and read on the couch.
- On cold evenings, I cocoon myself in a blanket and drink tea.
- He cocooned himself in work to avoid thinking about the problem.
in a cocoon
1/ˈɪn ə kəkˈun/
fixed phrase
protected and cut off
Safe and comfortable, but not connected to the outside world.
Examples
- During exam week, she stayed in a cocoon and ignored her phone.
- He grew up in a cocoon and knew little about life outside his town.
- With the curtains closed and music on, the room felt like a cocoon.