RSS

name

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

"rss" is a 3-letter English headword indexed on PlainSpell.

The verdict

“RSS” is a moderately-common English word, ranked #15,496 in English word frequency and used as a proper noun.

#15,496
frequency rank, English
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of Rich Site Summary / Really Simple Syndication (“mechanism to follow updates on other websites such as news, music, blogs, etc.”).

Visual similarity to commonly confused words

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

RSS vs RT
33% similar
RSS vs RV
33% similar
RSS vs RW
33% similar

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

Key facts for RSS
PropertyValue
HeadwordRSS
LanguageEnglish
Part of speechProper noun
Letters3
Frequency rank#15,496
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “RSS” 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). RSS 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 RSS is 3 letters long, classified as a proper noun. Corpus data places it at rank #15,496 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

RSS has no tracked misspelling variants, suggesting the orthography follows predictable English patterns. It also participates in 20 confusable-pair relationships, "RT", "RV", "RW", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Our source data has no etymology on file for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is RSS, spelled R-S-S.

Definition

  1. 1
    Initialism of Rich Site Summary / Really Simple Syndication (“mechanism to follow updates on other websites such as news, music, blogs, etc.”).
  2. 2
    Initialism of RDF Site Summary.
  3. 3
    Initialism of Republic of Singapore Ship (“prefix of Navy ships belonging to the Republic of Singapore Navy”).
  4. 4
    Initialism of Rashtriya Swayamsevak Sangh (“Indian nationalist volunteer organization”).

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 "RSS"?
"RSS" is spelled R-S-S.
What does "RSS" mean?
As a proper noun, "RSS" means: Initialism of Rich Site Summary / Really Simple Syndication (“mechanism to follow updates on other websites such as news, music, blogs, etc.”).
What words are commonly confused with "RSS"?
"RSS" is commonly confused with "RT", "RV", "RW". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "RSS" come from?
"RSS" is a English 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.

Using “RSS”

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

  • The one correct English spelling is R-S-S - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “RT” - see the side-by-side comparison. RSS vs RT
  • 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