thruster
/ˈθɹʌ.stɚ/
"thruster" is a 8-letter English headword indexed on PlainSpell.
The verdict
“thruster” is a moderately-common English word, ranked #42,450 in English word frequency and used as a noun.
- #42,450
- frequency rank, English
- 8
- letters
- 13
- tracked misspellings
- 6
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - One who thrusts, who pushes or stabs.
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 | thruster |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈθɹʌ.stɚ/ |
| Letters | 8 |
| Frequency rank | #42,450 |
| Misspellings tracked | 13 |
| Confusable pairs | 6 |
| Source | Wiktionary (kaikki.org) |
Where “thruster” sits in English frequency
Spelling & Dictionary Insight
The English entry for thruster is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈθɹʌ.stɚ/. Corpus data places it at rank #42,450 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 13 likely wrong-spelling variants for thruster, with forms such as "htruster", "thhruster", and "thrruster". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 6 confusable-pair relationships, "trusted", "trustee", "thrusts", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: From thrust + -er. The surfboard sense was coined (but never trademarked) by Simon Anderson, who created the design in 1980. The name was almost immediately applied generically to any surfboard with that fin design. The correct English form is thruster, spelled T-H-R-U-S-T-E-R.
Definition
- 1One who thrusts, who pushes or stabs.
- 2A device for propelling an object, especially a spacecraft or a ship (marine vessel).
- 3A bow thruster or a stern thruster.
- 4A surfboard (usually a shortboard) with three fins of approximately equal size, one centred at the back, one on each side about 25cm forward and out near the rails.
- 5An ambitious, driven person; a go-getter.
Etymology
From thrust + -er. The surfboard sense was coined (but never trademarked) by Simon Anderson, who created the design in 1980. The name was almost immediately applied generically to any surfboard with that fin design.
Common misspellings
Also misspelled as: htruster,thhruster,thrruster,thrsuter,thrusetr,thrusster,thrusterr,thrustre,thrustter,thrutser,thurster,trhuster,tthruster
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of thruster - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "thruster"?
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Using “thruster”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-H-R-U-S-T-E-R - every other letter order is a misspelling in standard orthography.
- Say it as /ˈθɹʌ.stɚ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “trusted” - see the side-by-side comparison. thruster vs trusted
- Browse more English words and confusable pairs in the same reference. English words
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.