pestervsplasterTell them apart

Quick tell: pester is a verb, plaster is a noun, so they fill different roles in a sentence.

Which to use

“pester” is a verb and “plaster” is a noun - they look or sound alike but fill different roles in a sentence.

#48,966
“pester” frequency rank
#14,384
“plaster” frequency rank
63350
confusion score

Side-by-Side Comparison

Feature pester plaster
Definition To bother, harass, or annoy persistently. A paste applied to the skin for healing or cosmetic purposes.

Where the eye mixes pester and plaster

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
pester
7 ch
plaster

Why the eye confuses pester with plaster

These two trip readers on the page rather than in the ear: pester is /ˈpɛstə(ɹ)/ while plaster is /ˈplɑː.stə/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 63350, derived from the frequency rank of both members and their visual similarity.

pester is recorded at frequency rank #48,966, classified as averb, pronounced /ˈpɛstə(ɹ)/. plaster is at rank #14,384, tagged as anoun, pronounced /ˈplɑː.stə/.

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 63350, this pair ranks #83,478 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of pester vs plaster

Shared letters: eprst. Private to "pester": -. Private to "plaster": al.

"pester" · 6 letters · shape CVCCVC  ·  "plaster" · 7 letters · shape CCVCCVC

Known mistypes of this pair

  • pesterepster · pesetr · pesster · pesterr · pestre · pestter · petser · ppester
  • plasterlpaster · palster · plasetr · plasster · plasterr · plastre · plastter · platser

Frequently Asked Questions

Can "pester" and "plaster" be used interchangeably?
No - they are not even the same part of speech. "pester" is a verb and "plaster" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "pester" vs "plaster" - which ranks higher?
"plaster" is the more common of the two: it sits at frequency rank #14,384 in our English list, against #48,966 for "pester". 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 "pester" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "plaster" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #83,478 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "pester" and "plaster" also get mixed up with nearby pairs, the highest-scored neighbour is "pester vs Petey". 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 #83,478 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list