ser

[ˈseɾ]

/[ˈseɾ]/ verb

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

The verdict

“ser” sits in 20 confusable pairs (corpus #39) as a verb. The look-alike neighbours are the real trap.

#39
frequency rank, Spanish
4,169
“S” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Tener algo una determinada naturaleza, propiedad o cualidad estable.

Corpus desk

Index ES-ser · ser · Spanish

ser · rank #39 · 0 variants · 20 confusables

  • FREQ-CORE #39
  • LEN-MID 3 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 4,169
  • PHOTO-FINISH yo

Nearest frequency peer: yo (-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.

Vecinos de frecuencia del confusable “ser”

Pares de peso similar en el corpus, aparte de los confusables abajo

corpus weight

What this shows Las barras sitúan “ser” frente a los lemas españoles más cercanos por rango, no un reprint del escritorio de confusables.

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).

ser vs su
33% similar
ser vs sí
33% similar
ser vs so
33% similar

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

Key facts for ser
PropertyValue
Headwordser
LanguageSpanish
Part of speechVerb
IPA[ˈseɾ]
Letters3
Frequency rank#39
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Rango de corpus junto a confusables de “ser”

De izquierda a derecha: las pocas palabras que cargan el habla diaria, luego la cola larga casi invisible.sercae aquí:

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

Los ticks avanzan en logaritmo; cada uno es del orden de diez veces más raro. En la misma franja de rareza aparecen “yo” (#38), “son” (#40), “cuando” (#37). Entre 4,169 lemas con “S”, “ser” va en #39. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for ser is neighbouring look-alikes ("su", "sí", …), not just typos; it is averb pronounced [ˈseɾ]. Frequency #39 among 4,169 “S” headwords. 17 recorded senses keep meaning in play.

Zero misspellings are on record for ser in our index, typically a sign the spelling maps closely to how the word sounds. It also participates in 20 confusable-pair relationships, "su", "sí", "so", and more, where similar look or sound leads writers to substitute one word for another in context.

No borrowing history is documented for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct Spanish form is ser, spelled S-E-R.

Definition

  1. 1
    Tener algo una determinada naturaleza, propiedad o cualidad estable.
  2. 2
    Seguido de la descripción de una acción, consistir en ella.
  3. 3
    Haber una cosa; admitir uno o varios predicados.
  4. 4
    Suceder o acontecer.
  5. 5
    Proceder o provenir de un lugar, tener un origen.
  6. 6
    Pertenecer o identificarse con un lugar.
  7. 7
    Pertenecer a la posesión o dominio de alguno.
  8. 8
    Servir, aprovechar o conducir para alguna cosa.
  9. 9
    Estar en algún lugar o situación.
  10. 10
    Se usa para decir la hora o fecha.
  11. 11
    Tener algo un valor o precio.
  12. 12
    Se usa para dar el resultado de una operación aritmética.
  13. 13
    Corresponder o adecuarse una conducta a una persona.
  14. 14
    Sirve para afirmar o negar en lo que se dice o pretende.
  15. 15
    Junto con nombres que significan empleo, ocupación o ministerio vale ejercitarlos u ocuparse en ellos.
  16. 16
    Dicho de una persona: haber alcanzado su máximo apogeo.
  17. 17
    Fracasar, quedar obsoleto o perder todas las chances para repuntar.

Recorded use

Wiktionary examples

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

  1. El cielo es azul.
  2. Se llama ente todo aquello que es. Puede tratarse de una silla, de una montaña, de un ángel, de Don Quijote, de la raíz cuadrada de -1, o aun de absurdos como los triángulos redondos o las maderas de hierro: todo esto es, de todo ello puede predicarse el término “es”, y en la medida en que ello ocurre, se trata de entes ―así como “pudiente” es “el que pue…

Synonyms

realizarse

This word in other languages

be(English)être(Français)sein(Deutsch)ser(Português)

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 "ser"?
"ser" is spelled S-E-R. The IPA pronunciation is [ˈseɾ].
What does "ser" mean?
As a verb, "ser" means: Tener algo una determinada naturaleza, propiedad o cualidad estable.
What words are commonly confused with "ser"?
"ser" is commonly confused with "su", "sí", "so". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "ser"?
The IPA (International Phonetic Alphabet) transcription for "ser" is [ˈseɾ]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "ser" come from?
"ser" is a Spanish word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 Spanish words by spelling shape

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

Same letter count

Frequency-ranked Spanish headwords with 3 letters (nearest by frequency rank).

son#40sin#41hay#42fue#44

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

Source: FrequencyWords open word-frequency list