robotvsrobustWhat's the difference?

Quick tell: robot is a noun, robust is an adjective, so they fill different roles in a sentence.

Which to use

“robot” is a noun and “robust” is an adjective - they look or sound alike but fill different roles in a sentence.

#28,365
“robot” frequency rank
#23,682
“robust” frequency rank
52047
confusion score

Side-by-Side Comparison

Feature robot robust
Definition Roboter unanfällig gegen Störungen

Where the eye mixes robot and robust

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
robot
6 ch
robust

Look-alike desk: robot vs robust

These two trip readers on the page rather than in the ear: robot is [ˈrəʊbɒt] while robust is [ʁoˈbʊst]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 52047, derived from the frequency rank of both members and their visual similarity.

robot is recorded at frequency rank #28,365, classified as anoun, pronounced [ˈrəʊbɒt]. robust is at rank #23,682, tagged as anadj, pronounced [ʁoˈbʊst].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 52047, this pair ranks #1,112,023 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of robot vs robust

Shared letters: bort. Private to "robot": -. Private to "robust": su.

"robot" · 5 letters · shape CVCVC  ·  "robust" · 6 letters · shape CVCVCC

Known mistypes of this pair

  • robotorbot · rboot · robbot · robott · robto · roobt · rrobot
  • robustorbust · rboust · robbust · robsut · robusst · robustt · robuts · roubst

Frequently Asked Questions

Can "robot" and "robust" be used interchangeably?
No - they are not even the same part of speech. "robot" is a noun and "robust" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "robot" or "robust" show up more?
"robust" is the more common of the two: it sits at frequency rank #23,682 in our German list, against #28,365 for "robot". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "robot" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "robust" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,112,023 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "robot" and "robust" also get mixed up with nearby pairs, the highest-scored neighbour is "robo vs robot". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #1,112,023 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list