sidecar

/ˈsaɪdkɑɹ/

//ˈsaɪdkɑɹ// noun

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

"sidecar" is a 7-letter English headword indexed on PlainSpell.

The verdict

“sidecar” is uncommon English (frequency #50,800 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.

#50,800
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A one-wheeled attachment to the side of a motorcycle to allow for a separate seat for a passenger or cargo space.

Corpus desk

Index EN-sidecar · sidecar · English

sidecar · rank #50,800 · 0 variants · 0 confusables

  • FREQ-RARE #50,800
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH Shetty

Nearest frequency peer: Shetty (-2 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.

Long-tail ranks near “sidecar”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “sidecar” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for sidecar
PropertyValue
Headwordsidecar
LanguageEnglish
Part of speechNoun
IPA/ˈsaɪdkɑɹ/
Letters7
Frequency rank#50,800
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “sidecar” in English

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

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “Shetty” (#50,798), “simulcast” (#50,802), “sequester” (#50,797). Among 6,566 “S” headwords, “sidecar” is #50,800. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

sidecar is uncommon English at frequency #50,800 among 6,566 “S” headwords, classed as anoun, transcribed /ˈsaɪdkɑɹ/. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for sidecar in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From side + car. The correct English form is sidecar, spelled S-I-D-E-C-A-R.

Definition

  1. 1
    A one-wheeled attachment to the side of a motorcycle to allow for a separate seat for a passenger or cargo space.
  2. 2
    A cocktail made with cognac (or brandy), triple sec liqueur, and lemon juice.
  3. 3
    A software component that runs in a separate process from the rest of the software, to provide isolation and encapsulation.

Recorded use

Wiktionary examples

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

  1. Faux 19th-century bartenders in sleeve garters and baroque facial hair ply their trade in pre-Prohibition bars. Women wearing cloche hats order sidecars at speakeasies.
  2. Using generic sidecars for multiple microservices may introduce functionality overhead.

Etymology

From side + car.

This word in other languages

sidecar(Español)side-car(Français)Beiwagen(Deutsch)

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.

Frequently Asked Questions

How do you spell "sidecar"?
"sidecar" is spelled S-I-D-E-C-A-R. The IPA pronunciation is /ˈsaɪdkɑɹ/.
What does "sidecar" mean?
As a noun, "sidecar" means: A one-wheeled attachment to the side of a motorcycle to allow for a separate seat for a passenger or cargo space.
How do you pronounce "sidecar"?
The IPA (International Phonetic Alphabet) transcription for "sidecar" is /ˈsaɪdkɑɹ/. 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 "sidecar"?
From side + car. 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 "sidecar", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Salerno#50,784rummage#50,783Romford#50,779Riddell#50,777

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

Source: FrequencyWords open word-frequency list