Alternative Spelling guide

XF

adj · name · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

This record is a supporting form or spelling variant of extremely fine or extra fine. Use the canonical entry for the main definition and word-family path.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

adj

Meaning 1

Initialism of extremely fine or extra fine; also EF.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism, not-comparable

Topics: hobbies, lifestyle, philately

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Initialism of extremely fine.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism, not-comparable, slang

Topics: hobbies, lifestyle, numismatics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

name

Meaning 3

Initialism of The X-Files.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

1 source translations are retained for this English entry.

  • French: SUP — extremely fine