photosynthesis

/ˌfəʊ.təʊˈsɪn.θə.sɪs/

//ˌfəʊ.təʊˈsɪn.θə.sɪs// noun

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

"photosynthesis" is a 14-letter English headword indexed on PlainSpell.

The verdict

“photosynthesis” has 23 generated spelling variants in the English index at frequency #27,962. The variants make it a useful spelling check.

#27,962
frequency rank, English
46,516
“P” headwords
23
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any process by which plants and other photoautotrophs convert light energy into chemical energy.

Visual similarity to commonly confused words

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

photosynthesis vs photosynthetic
86% similar

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

Key facts for photosynthesis
PropertyValue
Headwordphotosynthesis
LanguageEnglish
Part of speechNoun
IPA/ˌfəʊ.təʊˈsɪn.θə.sɪs/
Letters14
Frequency rank#27,962
Misspellings tracked23
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “photosynthesis” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). photosynthesis lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 23 spelling variants around photosynthesis (IPA /ˌfəʊ.təʊˈsɪn.θə.sɪs/), anoun. Corpus frequency is #27,962 among 46,516 “P” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 23 likely wrong-spelling variants for photosynthesis, with forms such as "hpotosynthesis", "phhotosynthesis", and "phootsynthesis". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 1 confusable-pair relationship, "photosynthetic", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From photo- + synthesis. The correct English form is photosynthesis, spelled P-H-O-T-O-S-Y-N-T-H-E-S-I-S.

Definition

  1. 1
    Any process by which plants and other photoautotrophs convert light energy into chemical energy.
  2. 2
    Any process by which plants and other photoautotrophs convert light energy into chemical energy.

Etymology

From photo- + synthesis.

This word in other languages

fotosíntesis(Español)photosynthèse(Français)Photosynthese(Deutsch)fotossíntese(Português)

Common misspellings

Also misspelled as:

  • hpotosynthesis
  • phhotosynthesis
  • phootsynthesis
  • photosnythesis
  • photossynthesis
  • photosynhtesis
  • photosynnthesis
  • photosyntehsis
  • photosyntheiss
  • photosynthesiss
  • photosynthessi
  • photosynthessis
  • photosynthhesis
  • photosynthseis
  • photosyntthesis
  • photosytnhesis
  • photosyynthesis
  • photoysnthesis
  • photsoynthesis
  • phottosynthesis
  • phtoosynthesis
  • pohtosynthesis
  • pphotosynthesis

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of photosynthesis - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

hpotosynthesis2phhotosynthesis1phootsynthesis2photosnythesis2photossynthesis1photosynhtesis2photosynnthesis1photosyntehsis2
Edit distance from "photosynthesis"

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 "photosynthesis"?
"photosynthesis" is spelled P-H-O-T-O-S-Y-N-T-H-E-S-I-S. The IPA pronunciation is /ˌfəʊ.təʊˈsɪn.θə.sɪs/.
What does "photosynthesis" mean?
As a noun, "photosynthesis" means: Any process by which plants and other photoautotrophs convert light energy into chemical energy.
What words are commonly confused with "photosynthesis"?
"photosynthesis" is commonly confused with "photosynthetic". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "photosynthesis"?
The IPA (International Phonetic Alphabet) transcription for "photosynthesis" is /ˌfəʊ.təʊˈsɪn.θə.sɪs/. 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 "photosynthesis"?
From photo- + synthesis. 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.

Using “photosynthesis”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is P-H-O-T-O-S-Y-N-T-H-E-S-I-S - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌfəʊ.təʊˈsɪn.θə.sɪs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “photosynthetic” - see the side-by-side comparison. photosynthesis vs photosynthetic
  • Browse more English words and confusable pairs in the same reference. English words

Same frequency band

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list