shell: meaning, definition, pronunciation and examples
B1Neutral; used across all registers from everyday conversation to technical contexts.
Quick answer
What does “shell” mean?
A hard protective outer covering of an animal (such as a mollusk, crustacean, or turtle), egg, or nut.
Audio
Pronunciation
Definition
Meaning and Definition
A hard protective outer covering of an animal (such as a mollusk, crustacean, or turtle), egg, or nut.
Any hollow, hard outer case or structure; a hollow framework; a projectile for a gun; the outer software interface of an operating system (e.g., command-line shell); a company or corporation that exists in name but has no significant assets or operations; a light, narrow racing boat.
Dialectal Variation
British vs American Usage
Differences
Minimal. Both varieties use all major meanings. 'Shell suit' is a British term for a tracksuit. 'Shell company' is slightly more frequent in American business/legal contexts.
Connotations
Similar in both. 'Shell' can imply emptiness (shell of a building), protection (come out of one's shell), or attack (artillery shell).
Frequency
The core noun meaning is equally frequent. Verb uses ('to shell peas', 'to shell a position') are equally common.
Grammar
How to Use “shell” in a Sentence
VERB + shell: to break/crack/collect/find a shellSHELL + VERB: the shell protects/cracks/shattersSHELL + NOUN: shell fragment/casing/holeto shell + OBJECT: to shell peas/nuts/beans; to shell a town/positionVocabulary
Collocations
Examples
Examples of “shell” in a Sentence
verb
British English
- We need to shell these broad beans before cooking.
- The battleship began to shell the coastal defences.
American English
- Can you help shell the pecans for the pie?
- The artillery unit was ordered to shell the enemy compound.
adverb
British English
- (Rarely used as a pure adverb; typically part of phrasal verbs e.g., 'shell out')
American English
- (Rarely used as a pure adverb; typically part of phrasal verbs e.g., 'shell out')
adjective
British English
- She painted the room a soft shell pink.
- The divers examined the shell fragments on the seabed.
American English
- He ordered the shell pasta for his main course.
- The old factory was just a shell structure after the fire.
Usage
Meaning in Context
Business
Refers to a 'shell company', a non-trading company used for financial manoeuvres.
Academic
Used in biology (animal anatomy), computing (user interface), geology (seashell fossils), and military history.
Everyday
Referring to eggshells, nutshells, collecting seashells, or peeling (shelling) nuts or peas.
Technical
In computing: a command-line interface (Bash shell). In engineering: a thin-walled structure. In chemistry: electron shell.
Watch out
Common Mistakes When Using “shell”
- Using 'skin' instead of 'shell' for nuts (We shell peanuts, we don't *skin them).
- Confusing 'shell' with 'peel' (peel fruit, shell nuts).
- Using 'bomb' for a large artillery projectile (artillery shell).
FAQ
Frequently Asked Questions
'Shell' is for hard, brittle coverings (eggs, nuts, turtles). 'Peel' is for softer skins (fruit, vegetables). 'Husk' is a dry, often papery outer layer (corn, coconuts, some nuts).
Yes. The main other use is military: 'to shell' means to bombard with explosive artillery shells. It can also mean to remove any hard outer layer.
It is an idiom meaning to become less shy and more willing to talk and interact with people.
No. 'Shell shock' was a term used in World War I. The modern, clinical term is Post-Traumatic Stress Disorder (PTSD). 'Shell shock' is now used historically or informally.
A hard protective outer covering of an animal (such as a mollusk, crustacean, or turtle), egg, or nut.
Shell is usually neutral; used across all registers from everyday conversation to technical contexts. in register.
Shell: in British English it is pronounced /ʃɛl/, and in American English it is pronounced /ʃɛl/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “come out of one's shell (become less shy)”
- “shell out (pay, often reluctantly)”
- “go into one's shell (become withdrawn)”
- “a shell of one's former self (greatly weakened)”
- “shell shock (historical term for PTSD)”
Learning
Memory Aids
Mnemonic
Imagine a SEA SHELL on the SHORE. Both words start with 'sh' and 'sh' is the sound of the sea. The hard SHELL protects the soft creature inside.
Conceptual Metaphor
PROTECTION IS A SHELL (retreat into one's shell). EMPTINESS/STRUCTURE IS A SHELL (shell of a building). ATTACK IS SHELLING (military bombardment).
Practice
Quiz
In a computing context, what is a 'shell'?