silly

/ˈsɪl.i/

//ˈsɪl.i// adj

By · According to Wiktionary data (CC BY-SA) ·

"silly" is a 5-letter English headword indexed on PlainSpell.

The verdict

“silly” has 6 generated spelling variants in the English index at frequency #3,727. The variants make it a useful spelling check.

#3,727
frequency rank, English
6,566
“S” headwords
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 2, 2026) - Laughable or amusing through foolishness or a foolish appearance.

Corpus desk

Index EN-silly · silly · English

silly · rank #3,727 · 6 variants · 20 confusables

  • FREQ-COMMON #3,727
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 6 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH shell

Nearest frequency peer: shell (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “silly”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “silly” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 2, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

silly vs sly
60% similar
silly vs slay
60% similar
silly vs silo
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for silly
PropertyValue
Headwordsilly
LanguageEnglish
Part of speechAdjective
IPA/ˈsɪl.i/
Letters5
Frequency rank#3,727
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “silly” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). silly lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 6 spelling variants around silly (IPA /ˈsɪl.i/), anadjective. Corpus frequency is #3,727 among 6,566 “S” headwords. Wiktionary lists 17 senses, so context still picks the gloss.

Our generated misspelling index lists 6 likely wrong-spelling variants for silly, with forms such as "islly", "sillyy", and "sily". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "sly", "slay", "silo", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English seely, sēlī, from Old English sǣliġ, ġesǣliġ (“lucky, fortunate”), from Proto-West Germanic *sālīg, from *sāli; equivalent to seel (“happiness, bliss”) + -y. Doublet of Seelie. The semantic evolution is “lucky” to “innocent” to “naive” t… The correct English form is silly, spelled S-I-L-L-Y.

Definition

  1. 1
    Laughable or amusing through foolishness or a foolish appearance.
  2. 2
    Laughable or amusing through foolishness or a foolish appearance.
  3. 3
    Blessed
  4. 4
    Blessed
  5. 5
    Pitiful, inspiring compassion, particularly
  6. 6
    Pitiful, inspiring compassion
  7. 7
    Pitiful, inspiring compassion
  8. 8
    Pitiful, inspiring compassion
  9. 9
    Pitiful, inspiring compassion
  10. 10
    Pitiful, inspiring compassion
  11. 11
    Simple, plain
  12. 12
    Simple, plain
  13. 13
    Mentally simple, foolish
  14. 14
    Mentally simple, foolish
  15. 15
    Mentally simple, foolish
  16. 16
    Mentally simple, foolish
  17. 17
    Very close to the batsman, facing the bowler; closer than short.

Recorded use

Wiktionary examples

These source excerpts show how silly appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. They were laughing at a silly joke.
  2. This is the silliest stuffe, that euer I heard.

Etymology

From Middle English seely, sēlī, from Old English sǣliġ, ġesǣliġ (“lucky, fortunate”), from Proto-West Germanic *sālīg, from *sāli; equivalent to seel (“happiness, bliss”) + -y. Doublet of Seelie. The semantic evolution is “lucky” to “innocent” to “naive” to “foolish”. Compare the similar evolution of daft (originally meaning “accommodating”), and almost the reverse with nice (originally meaning “ignorant”).

Synonyms

charmingAlso see Thesaurus:foolish

Antonyms

pious

This word in other languages

bobo(Español)sot(Français)doof(Deutsch)bobo(Português)

Common misspellings

Also misspelled as:

  • islly
  • sillyy
  • sily
  • silyl
  • slily
  • ssilly

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of silly - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

islly2sillyy1sily1silyl2slily2ssilly1
Edit distance from "silly"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 2, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "silly"?
"silly" is spelled S-I-L-L-Y. The IPA pronunciation is /ˈsɪl.i/.
What does "silly" mean?
As an adjective, "silly" means: Laughable or amusing through foolishness or a foolish appearance.
What words are commonly confused with "silly"?
"silly" is commonly confused with "sly", "slay", "silo". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "silly"?
The IPA (International Phonetic Alphabet) transcription for "silly" is /ˈsɪl.i/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "silly"?
From Middle English seely, sēlī, from Old English sǣliġ, ġesǣliġ (“lucky, fortunate”), from Proto-West Germanic *sālīg, from *sāli; equivalent to seel (“happiness, bliss”) + -y. Doublet of Seelie. The semantic evolution is “lucky” to “innocent” to... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "silly", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

shell#3,726towns#3,730roger#3,721Allen#3,735

Similar misspelling depth

Headwords with a similar count of attested misspellings (6 here; floor ≥5).

angle6 variantsarrive6 variantsone's6 variantskeys6 variants
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list