biological

/ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/

//ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl// adj

By · According to Wiktionary data (CC BY-SA) ·

"biological" is a 10-letter English headword indexed on PlainSpell.

The verdict

“biological” has 14 generated spelling variants in the English index at frequency #4,212. The variants make it a useful spelling check.

#4,212
frequency rank, English
4,121
“B” headwords
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of or relating to biology.

Corpus desk

Index EN-biological · biological · English

biological · rank #4,212 · 14 variants · 2 confusables

  • FREQ-COMMON #4,212
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH attracted

Nearest frequency peer: attracted (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “biological”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “biological” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

biological vs biologically
83% similar
biological vs biologic
80% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for biological
PropertyValue
Headwordbiological
LanguageEnglish
Part of speechAdjective
IPA/ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/
Letters10
Frequency rank#4,212
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “biological”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).biologicallands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “attracted” (#4,211), “bite” (#4,213), “attending” (#4,210). Among 4,121 “B” headwords, “biological” is #4,212. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around biological (IPA /ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/), anadjective. Corpus frequency is #4,212 among 4,121 “B” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 14 likely wrong-spelling variants for biological, with forms such as "bbiological", "biloogical", and "biolgoical". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 2 confusable-pair relationships, "biologically", "biologic", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βίος (bíos) Proto-Indo-European *leǵ- Ancient Greek λόγος (lógos) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Anci… The correct English form is biological, spelled B-I-O-L-O-G-I-C-A-L.

Definition

  1. 1
    Of or relating to biology.
  2. 2
    Relating to anatomy; anatomic, anatomical.
  3. 3
    Related by consanguinity, especially as to parents and children.
  4. 4
    Organic (grown without agrochemicals).

Recorded use

Wiktionary examples

These source excerpts show how biological appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. He draws eclectically on studies of baboons, descriptive anthropological accounts of hunter-gatherer societies and, in a few cases, the fossil record. With this biological framework in place, Corning endeavors to show that the capitalist system as currently practiced in the United States and elsewhere is manifestly unfair.
  2. Sex refers to a person's biological status and is typically assigned at birth, usually on the basis of external anatomy.

Etymology

Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βίος (bíos) Proto-Indo-European *leǵ- Ancient Greek λόγος (lógos) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Ancient Greek -λογῐ́ᾱ (-logĭ́ā)bor. New Latin -logia New Latin biologialbor. English biology English -ical English biological From biology + -ical.

Synonyms

biologic

This word in other languages

biológico(Español)biologique(Français)biologisch(Deutsch)biológico(Português)

Common misspellings

Also misspelled as:

  • bbiological
  • biloogical
  • biolgoical
  • biollogical
  • biologcial
  • biologgical
  • biologiacl
  • biologicall
  • biologiccal
  • biologicla
  • bioloigcal
  • bioolgical
  • boilogical
  • ibological

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of biological - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

bbiological1biloogical2biolgoical2biollogical1biologcial2biologgical1biologiacl2biologicall1
Edit distance from "biological"

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 "biological"?
"biological" is spelled B-I-O-L-O-G-I-C-A-L. The IPA pronunciation is /ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/.
What does "biological" mean?
As an adjective, "biological" means: Of or relating to biology.
What words are commonly confused with "biological"?
"biological" is commonly confused with "biologically", "biologic". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "biological"?
The IPA (International Phonetic Alphabet) transcription for "biological" is /ˌbaɪ.ə(ʊ)ˈlɒd͡ʒ.ɪ.kəl/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "biological"?
Etymology tree Proto-Indo-European *gʷeyh₃-der. Ancient Greek βίος (bíos) Proto-Indo-European *leǵ- Ancient Greek λόγος (lógos) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "biological", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

categories#4,217concerning#4,221engagement#4,233sufficient#4,191

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

suspended14 variantsencouraged14 variantsstability14 variantsdiversity14 variants

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

Source: FrequencyWords open word-frequency list