Shell

/ʃɛl/ name, noun, verb, slang

name, noun, verb, slang ·Top 500 ·Elementary level

Meaning at a glance

  • Primary sense: A hard external covering of an animal.; The calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates.
  • Grammar: shell is listed as name, noun, verb, slang.
  • Nearest alternatives: carapace, eggshell, abalone, acting area.
  • Useful contrasts: GUI, active business, angular.
  • Usage evidence: Steve had to shell out $50.00 for the speeding ticket he got last week.

How to use "shell"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "shell" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "shell" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "shell" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "shell" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "shell" is acting as name, noun, verb, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "carapace" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "shell", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    A hard external covering of an animal.; The calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates.

    "In some mollusks, as the cuttlefish, the shell is concealed by the animal's outer mantle and is considered internal."

  2. 2
    hard outer covering or case of certain organisms such as arthropods and turtles wordnet
  3. 3
    A hard external covering of an animal.; Any mollusk having such a covering. broadly
  4. 4
    the hard largely calcareous covering of a mollusc or a brachiopod wordnet
  5. 5
    A hard external covering of an animal.; The exoskeleton or wing covers of certain insects.
Show 44 more definitions
  1. 6
    a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners) wordnet
  2. 7
    A hard external covering of an animal.; The conjoined scutes that constitute the "shell" (carapace) of a tortoise or turtle.
  3. 8
    ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun wordnet
  4. 9
    A hard external covering of an animal.; The overlapping hard plates comprising the armor covering the armadillo's body.
  5. 10
    the housing or outer covering of something wordnet
  6. 11
    The hard calcareous covering of a bird egg.
  7. 12
    a very light narrow racing boat wordnet
  8. 13
    One of the outer layers of skin of an onion.

    "The restaurant served caramelized onion shells."

  9. 14
    a rigid covering that envelops an object wordnet
  10. 15
    The hard external covering of various plant seed forms.; The covering, or outside part, of a nut.

    "The black walnut and the hickory nut, both of the same Genus as the pecan, have much thicker and harder shells than the pecan."

  11. 16
    the exterior covering of a bird's egg wordnet
  12. 17
    The hard external covering of various plant seed forms.; A pod containing the seeds of certain plants, such as the legume Phaseolus vulgaris.
  13. 18
    the hard usually fibrous outer layer of some fruits especially nuts wordnet
  14. 19
    The hard external covering of various plant seed forms.; Husks of cacao seeds, a decoction of which is sometimes used as a substitute or adulterant for cocoa and its products such as chocolate. in-plural
  15. 20
    the material that forms the hard outer covering of many animals wordnet
  16. 21
    The accreted mineral formed around a hollow geode.
  17. 22
    The casing of a self-contained single-unit artillery projectile.
  18. 23
    A hollow, usually spherical or cylindrical projectile fired from a siege mortar or a smoothbore cannon. It contains an explosive substance designed to be ignited by a fuse or by percussion at the target site so that it will burst and scatter at high velocity its contents and fragments. Formerly called a bomb.
  19. 24
    The cartridge of a breechloading firearm; a load; a bullet; a round.
  20. 25
    Any slight hollow structure; a framework, or exterior structure, regarded as not complete or filled in, as the shell of a house.
  21. 26
    A garment, usually worn by women, such as a shirt, blouse, or top, with short sleeves or no sleeves, that often fastens in the rear.
  22. 27
    A coarse or flimsy coffin; a thin interior coffin enclosed within a more substantial one.

    "Upstairs in that chill darkened room which nobody passes who can help it , the old Baronet lies in his coffin shell - an awful form faintly defined beneath the sheet"

  23. 28
    An unmarked vehicle for carrying corpses from a crime scene.

    "Then they lifted the body into the bag, setting it down like something breakable, zipped the bag, wrapped the whole thing in polythene and carried the stretcher into the shell."

  24. 29
    A string instrument, as a lyre, whose acoustical chamber is formed like a shell.

    "The first lyre may have been made by drawing strings over the underside of a tortoise shell."

  25. 30
    The body of a drum; the often wooden, often cylindrical acoustic chamber, with or without rims added for tuning and for attaching the drum head.
  26. 31
    An engraved copper roller used in print works.
  27. 32
    The thin coating of copper on an electrotype.
  28. 33
    The watertight outer covering of the hull of a vessel, often made with planking or metal plating.
  29. 34
    The outer frame or case of a block within which the sheaves revolve.
  30. 35
    A light boat whose frame is covered with thin wood, impermeable fabric, or water-proofed paper; a racing shell or dragon boat.
  31. 36
    A set of atomic orbitals that have the same principal quantum number.
  32. 37
    The outward form independent of what is inside. figuratively
  33. 38
    The empty outward form of someone or something. figuratively

    "The setback left him a mere shell; he was never the same again."

  34. 39
    An emaciated person.

    "He's lost so much weight from illness; he's a shell of his former self."

  35. 40
    A person otherwise diminished. figuratively

    "Since coming back from Vietnam, he's been a shell of his former self."

  36. 41
    A psychological barrier to social interaction.

    "Even after months of therapy he's still in his shell."

  37. 42
    An operating system software user interface, whose primary purpose is to launch other programs and control their interactions; the user's command interpreter. Shell is a way to separate the internal complexity of the implementation of the command from the user. The internals can change while the user experience/interface remains the same.

    "The name "Bash" is an acronym which stands for "Bourne-again shell", itself a pun on the name of the "Bourne shell", an earlier Unix shell designed by Stephen Bourne, and the Christian concept of being "born again"."

  38. 43
    A legal entity that has no operations.

    "A shell corporation was formed to acquire the old factory."

  39. 44
    A concave rough cast-iron tool in which a convex lens is ground to shape.
  40. 45
    A gouge bit or shell bit.
  41. 46
    The onset and coda of a syllable.
  42. 47
    A person's ear. UK, slang

    "Can I have a quick word in your shell?"

  43. 48
    One or more school grades within secondary education, at certain public schools. British

    "Chinese (Mandarin) is taught at Westminster from the Lower Shell as an optional subject."

  44. 49
    In formal debating, a set of proposed rules to be followed, with set penalties for violating them.

    "a theory shell"

Verb
  1. 1
    To remove the outer covering or shell of something.
  2. 2
    remove the husks from wordnet
  3. 3
    To bombard, to fire projectiles at, especially with artillery.

    "The guns shelled the enemy trenches."

  4. 4
    remove from its shell or outer covering wordnet
  5. 5
    To disburse or give up money, to pay. (Often used with out). informal
Show 12 more definitions
  1. 6
    come out better in a competition, race, or conflict wordnet
  2. 7
    To fall off, as a shell, crust, etc. intransitive
  3. 8
    use explosives on wordnet
  4. 9
    To cast the shell, or exterior covering; to fall out of the pod or husk. intransitive

    "Nuts shell in falling."

  5. 10
    look for and collect shells by the seashore wordnet
  6. 11
    To switch to a shell or command line. intransitive

    "Automenu is a good program to try, and offers a fair amount of protection - but, unfortunately, it's one of those systems that allow users to shell to DOS."

  7. 12
    hit the pitches of hard and regularly wordnet
  8. 13
    To form shallow, irregular cracks (in a coating).
  9. 14
    fall out of the pod or husk wordnet
  10. 15
    To form a shelling.
  11. 16
    create by using explosives wordnet
  12. 17
    To drop (the ball). slang, transitive

    "He shelled it, and dislocated his finger in the process."

Proper Noun
  1. 1
    A surname.
  2. 2
    A diminutive of the female given name Michelle.

Synonyms

All synonyms
carapaceeggshellabaloneacting areaaim atalveolation

Antonyms

GUIactive businessangularcannonball

Example

"Steve had to shell out $50.00 for the speeding ticket he got last week."

Common questions

What does "shell" mean?

A hard external covering of an animal.; The calcareous or chitinous external covering of mollusks, crustaceans, and some other invertebrates.

What is a synonym for "shell"?

Common synonyms include: carapace, eggshell, abalone, acting area, aim at, alveolation.

How do you use "shell" in a sentence?

Steve had to shell out $50.00 for the speeding ticket he got last week.

How do you pronounce "shell"?

Pronounced /ʃɛl/.

Etymology

From Middle English schelle, from Old English sċiell, from Proto-West Germanic *skallju, from Proto-Germanic *skaljō, from Proto-Indo-European *(s)kelH- (“to split, cleave”). Compare West Frisian skyl (“peel, rind”), Dutch schil (“peel, skin, rink”), Low German Schell (“shell, scale”), Irish scelec (“pebble”), Old Church Slavonic сколика (skolika, “shell”). More at shale. Doublet of sheal. * (computing): From being viewed as an outer layer of interface between the user and the operating-system internals.

More for "shell"

Synonyms

Next best steps

Find stronger synonymsBrowse writing guidesExplore topic clusters