pH

[ˈf]

/[ˈf]/ noun

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

The verdict

“pH” sits in 20 confusable pairs (corpus #11,648) as a noun. The look-alike neighbours are the real trap.

#11,648
frequency rank, Spanish
6,028
“P” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Cuantificador de acidez o de basicidad (alcalinidad) de soluciones químicas, referido a iones de hidronio (H₃O)⁺. Consta de una escala de cero a catorce donde el valor siete es neutro, cifras infer...

Corpus desk

Index ES-ph · pH · Spanish

pH · rank #11,648 · 0 variants · 20 confusables

  • FREQ-MID #11,648
  • LEN-SHORT 2 letters
  • VOW-0 0 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,028
  • PHOTO-FINISH perseguido

Nearest frequency peer: perseguido (-1 rank slots)

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.

Frequency neighbourhood for “pH”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “pH” sits against the nearest ranked Spanish headwords in the FrequencyWords band, not a reprint of letter-browse containment.

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).

pH vs PP
0% similar
pH vs pm
50% similar
pH vs po
50% similar

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

Key facts for pH
PropertyValue
HeadwordpH
LanguageSpanish
Part of speechNoun
IPA[ˈf]
Letters2
Frequency rank#11,648
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Dónde se sitúa “pH” en la frecuencia del español

Esta escala corre desde el núcleo del español cotidiano (izquierda) hasta el rastro de formas rara vez usadas (derecha).pHcae aquí:

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

La escala es logarítmica (cada marca ≈ 10× más rara). En la misma franja de rareza aparecen “perseguido” (#11,647), “Phil” (#11,649), “perlas” (#11,646). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for pH is neighbouring look-alikes ("PP", "pm", …), not just typos; it is anoun pronounced [ˈf]. Frequency #11,648 among 6,028 “P” headwords. 2 recorded senses keep meaning in play.

The misspelling generator found no plausible variants for pH, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "PP", "pm", "po", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct Spanish form is pH, spelled P-H.

Definition

  1. 1
    Cuantificador de acidez o de basicidad (alcalinidad) de soluciones químicas, referido a iones de hidronio (H₃O)⁺. Consta de una escala de cero a catorce donde el valor siete es neutro, cifras inferiores corresponden a substancias ácidas, y las superiores, a básicas (alcalinas).
  2. 2
    Símbolo de picohenrio: unidad de inductancia del Sistema Internacional de Unidades (SI), equivalente a 10⁻¹² henrio.

Recorded use

Wiktionary examples

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

  1. La calidad del agua y el pH son a menudo mencionados en la misma frase. El pH es un factor muy importante, porque determinados procesos químicos solamente pueden tener lugar a un determinado pH. Por ejemplo, las reacciones del cloro solo tienen lugar cuando el pH tiene un valor de entre 6,5 y 8
  2. Unidad: henrio; submúltiplos: picohenrio, nanohenrio, microhenrio, milihenrio

Synonyms

pe hachepotencial de hidrógeno

Antonyms

pOH

This word in other languages

pH(English)pH(Français)pH-Wert(Deutsch)

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 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "pH"?
"pH" is spelled P-H. The IPA pronunciation is [ˈf].
What does "pH" mean?
As a noun, "pH" means: Cuantificador de acidez o de basicidad (alcalinidad) de soluciones químicas, referido a iones de hidronio (H₃O)⁺. Consta de una escala de cero a catorce donde el valor siete es neutro, cifras infer...
What words are commonly confused with "pH"?
"pH" is commonly confused with "PP", "pm", "po". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "pH"?
The IPA (International Phonetic Alphabet) transcription for "pH" is [ˈf]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "pH" come from?
"pH" is a Spanish word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

What to do next

You've looked up "pH". Here's where to go from here.

  • "pH" maps to 20 confusable pairs in this vintage; the highest-scored is "PP". View pair
  • Usage frequency rank #11,648 among Spanish headwords in this corpus. Corpus statistics
  • Browse more Spanish words in the "P" letter cohort. P–Z browse

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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