blockvsblockedWhich spelling fits?

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

Which to use

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

#1,386
“block” frequency rank
#4,214
“blocked” frequency rank
5600
confusion score

Side-by-Side Comparison

Feature block blocked
Definition A substantial, often approximately cuboid, piece of any substance. Obstructed, so that through movement or flow is prevented or impeded.

Where the eye mixes block and blocked

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

5 ch
block
7 ch
blocked

Visual trap between block and blocked

These two trip readers on the page rather than in the ear: block is /blɒk/ while blocked is /blɑkt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “block” sits inside “blocked”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 5600, derived from the frequency rank of both members and their visual similarity.

block is recorded at frequency rank #1,386, classified as anoun, pronounced /blɒk/. blocked is at rank #4,214, tagged as anadj, pronounced /blɑkt/.

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 5600, this pair ranks #514,682 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of block vs blocked

Shared letters: bcklo. Private to "block": -. Private to "blocked": de.

"block" · 5 letters · shape CCVCC  ·  "blocked" · 7 letters · shape CCVCCVC

Known mistypes of this pair

  • blockbblock · blcok · bllock · blocck · blockk · blokc · bolck · lbock
  • blockedbblocked · blcoked · bllocked · bloccked · blocekd · blockde · blockedd · blockked

Frequently Asked Questions

Can "block" and "blocked" be used interchangeably?
No - they are not even the same part of speech. "block" is a noun and "blocked" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "block" or "blocked" show up more?
"block" is the more common of the two: it sits at frequency rank #1,386 in our English list, against #4,214 for "blocked". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "block" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "blocked" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #514,682 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "block" and "blocked" also get mixed up with nearby pairs, the highest-scored neighbour is "blanked vs blocked". 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 #514,682 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