online
/ˈɒnlaɪn/
"online" is a 6-letter English headword indexed on PlainSpell.
The verdict
“online” has 8 generated spelling variants in the English index at frequency #659. The variants make it a useful spelling check.
- #659
- frequency rank, English
- 1,431
- “O” headwords
- 8
- tracked misspellings
- 7
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of a system: connected (generally electrically) to a larger network.
Corpus desk
Index EN-online · online · English
online · rank #659 · 8 variants · 7 confusables
- FREQ-CORE #659
- LEN-LONG 6 letters
- VOW-3 3 vowels
- CONFUS-MID 7 pairs
- VAR-MID 8 variants
- BOOK-MID 1,431
- PHOTO-FINISH issues
Nearest frequency peer: issues (-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.
Rank peers near misspelling magnet “online”
Same rarity band: useful when a typo lands on a peer headword
- industry
industry
99,345 corpus weight
- inside
inside
99,344 corpus weight
- issues
issues
99,343 corpus weight
- online
online
99,342 corpus weight
- player
player
99,341 corpus weight
- private
private
99,340 corpus weight
What this shows “online” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | online |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈɒnlaɪn/ |
| Letters | 6 |
| Frequency rank | #659 |
| Misspellings tracked | 8 |
| Confusable pairs | 7 |
| Source | Wiktionary (kaikki.org) |
Frequency seat of misspelling magnet “online”
A misspelling magnet
The generator records 8 spelling variants around online (IPA /ˈɒnlaɪn/), anadjective. Corpus frequency is #659 among 1,431 “O” headwords. Wiktionary lists 7 senses, so context still picks the gloss.
Our generated misspelling index lists 8 likely wrong-spelling variants for online, with forms such as "noline", "olnine", and "onilne". 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 7 confusable-pair relationships, "onsite", "onside", "outline", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: 1950, from on + line. The correct English form is online, spelled O-N-L-I-N-E.
Definition
- 1Of a system: connected (generally electrically) to a larger network.
- 2Of a system: connected (generally electrically) to a larger network.
- 3Available over, or delivered from, the Internet.
- 4Connected to the Internet.
- 5Available on a computer system, even if not networked.
- 6Of a system: active, particularly building facilities (such as power) or a factory or power plant.
- 7Immersed in Internet culture. (Usually modified by an intensifier such as extremely or terminally)
Recorded use
Wiktionary examplesThese source excerpts show how online appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Is this modem online?
In America alone, people spent $170 billion on “direct marketing”—junk mail of both the physical and electronic varieties—last year. Yet of those who received unsolicited adverts through the post, only 3% bought anything as a result. If the bumf arrived electronically, the take-up rate was 0.1%. And for online adverts the “conversion” into sales was a min…
Etymology
1950, from on + line.
Antonyms
This word in other languages
Common misspellings
Also misspelled as:
- noline
- olnine
- onilne
- onlien
- onlinne
- onlline
- onlnie
- onnline
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of online - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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 "online", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 6 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (8 here; floor ≥5).