sidevsspiderConfusable pair

Which to use

“side” and “spider” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#297
“side” frequency rank
#4,715
“spider” frequency rank
5012
confusion score

Side-by-Side Comparison

Feature side spider
Definition A bounding straight edge of a two-dimensional shape. Any of various eight-legged, predatory arthropods, of the order Araneae, most of which spin webs to catch prey.

Where the eye mixes side and spider

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

4 ch
side
6 ch
spider

Why the eye confuses side with spider

A purely visual mix-up. side (/saɪd/) and spider (/ˈspaɪ̯də/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 5012, derived from the frequency rank of both members and their visual similarity.

side is recorded at frequency rank #297, classified as anoun, pronounced /saɪd/. spider is at rank #4,715, tagged as anoun, pronounced /ˈspaɪ̯də/.

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 5012, this pair ranks #516,886 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of side vs spider

Shared letters: deis. Private to "side": -. Private to "spider": pr.

"side" · 4 letters · shape CVCV  ·  "spider" · 6 letters · shape CCVCVC

Known mistypes of this pair

  • sideisde · sdie · sidde · sied · sside
  • spiderpsider · sipder · spdier · spidder · spiderr · spidre · spiedr · sppider

Frequently Asked Questions

Do "side" and "spider" mean the same thing in a sentence?
No. They are said differently (/saɪd/ versus /ˈspaɪ̯də/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "side" vs "spider" - which ranks higher?
"side" is the more common of the two: it sits at frequency rank #297 in our English list, against #4,715 for "spider". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "side" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "spider" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #516,886 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "side" and "spider" also get mixed up with nearby pairs, the highest-scored neighbour is "snide vs spider". 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 #516,886 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