seaside

/ˌsiːˈsaɪd/

//ˌsiːˈsaɪd// noun

"seaside" is a 7-letter English headword indexed on PlainSpell.

The verdict

“seaside” is a moderately-common English word, ranked #13,419 in English word frequency and used as a noun.

#13,419
frequency rank, English
7
letters
9
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The area by and around the sea; including the beach, promenade or cliffs.

Visual similarity to commonly confused words

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

seaside vs subside
71% similar

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

Key facts for seaside
PropertyValue
Headwordseaside
LanguageEnglish
Part of speechNoun
IPA/ˌsiːˈsaɪd/
Letters7
Frequency rank#13,419
Misspellings tracked9
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “seaside” 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). seaside lands here:

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

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

Spelling & Dictionary Insight

The English entry for seaside is 7 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˌsiːˈsaɪd/. Corpus data places it at rank #13,419 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "The area by and around the sea; including the beach, promenade or cliffs.".

Our generated misspelling index lists 9 likely wrong-spelling variants for seaside, with forms such as "esaside", "saeside", and "seaisde". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "subside", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English see-syde, sey-syde, see syde, se side, equivalent to sea + side. The correct English form is seaside, spelled S-E-A-S-I-D-E.

Definition

  1. 1
    The area by and around the sea; including the beach, promenade or cliffs.

Etymology

From Middle English see-syde, sey-syde, see syde, se side, equivalent to sea + side.

This word in other languages

Common misspellings

Also misspelled as: esaside,saeside,seaisde,seasdie,seasidde,seasied,seasside,sesaide,sseaside

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of seaside - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

esaside2saeside2seaisde2seasdie2seasidde1seasied2seasside1sesaide2
Edit distance from "seaside"

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 "seaside"?
"seaside" is spelled S-E-A-S-I-D-E. The IPA pronunciation is /ˌsiːˈsaɪd/.
What does "seaside" mean?
As a noun, "seaside" means: The area by and around the sea; including the beach, promenade or cliffs.
What words are commonly confused with "seaside"?
"seaside" is commonly confused with "subside". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "seaside"?
The IPA (International Phonetic Alphabet) transcription for "seaside" is /ˌsiːˈsaɪd/. 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 "seaside"?
From Middle English see-syde, sey-syde, see syde, se side, equivalent to sea + side. 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 “seaside”

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

  • The one correct English spelling is S-E-A-S-I-D-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌsiːˈsaɪd/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “subside” - see the side-by-side comparison. seaside vs subside
  • Browse more English words and confusable pairs in the same reference. English words
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 FrequencyWords open word-frequency list