rectilinear
/ˌɹɛktɪˈlɪniɚ/
"rectilinear" is a 11-letter English headword indexed on PlainSpell.
The verdict
“rectilinear” is uncommon English (frequency #72,701 among 3,094 “R” headwords), classed as an adjective. The kind of spelling people second-guess.
- #72,701
- frequency rank, English
- 3,094
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In a straight line.
Corpus desk
Index EN-rectilinear · rectilinear · English
rectilinear · rank #72,701 · 0 variants · 0 confusables
- FREQ-RARE #72,701
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,094
- PHOTO-FINISH rawr
Nearest frequency peer: rawr (-4 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 “rectilinear”
Sparse band: bars invert rank so rarer forms read shorter
- ramrod
ramrod
27,307 corpus weight
- rappel
rappel
27,306 corpus weight
- rawr
rawr
27,304 corpus weight
- rectilinear
rectilinear
27,300 corpus weight
- regula
regula
27,295 corpus weight
- repackaging
repackaging
27,293 corpus weight
What this shows Long-tail view: where “rectilinear” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | rectilinear |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˌɹɛktɪˈlɪniɚ/ |
| Letters | 11 |
| Frequency rank | #72,701 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “rectilinear” in English
Rare enough to double-check
rectilinear is uncommon English at frequency #72,701 among 3,094 “R” headwords, classed as anadjective, transcribed /ˌɹɛktɪˈlɪniɚ/. Rarity is why readers land here mid-draft. 2 senses are on record.
Zero misspellings are on record for rectilinear in our index, since its letter pattern doesn't lend itself to common typo substitutions. No close-neighbour confusable shows up for this headword in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From post-Classical Latin; either from rectilīneāris or from rectilīneus (whence rectiline) + -ar, in both cases ultimately deriving from rectus (“straight”) + līnea (“line”). The correct English form is rectilinear, spelled R-E-C-T-I-L-I-N-E-A-R.
Definition
- 1In a straight line.
- 2Formed from straight lines.
Recorded use
Wiktionary exampleThese source excerpts show how rectilinear appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The crankshaft and connecting rods of an engine convert the rectilinear motion of the pistons to rotary motion of the flywheel.
Etymology
From post-Classical Latin; either from rectilīneāris or from rectilīneus (whence rectiline) + -ar, in both cases ultimately deriving from rectus (“straight”) + līnea (“line”).
This word in other languages
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "rectilinear", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).