Speakur

Word Pronunciation & Dictionary

σ-compact

Word Rarity Rare

Frequency: Zipf frequency 2.89 in modern English

Syllables
σ--com-pact
IPA
15
Scrabble Score
8
Letters
4
Syllables
7
Unique Chars

Meaning

adj

That is expressible as a countable union of compact sets.

Etymology

The 'σ' stands for "countable union".

Questions

What does σ-compact mean?
That is expressible as a countable union of compact sets.
Where does σ-compact come from?
The 'σ' stands for "countable union".

How to pronounce σ-compact

  1. Open the pronunciation page — Open the Speakur entry for “σ-compact”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “σ-compact”.
  4. Repeat and practice — Say “σ-compact” aloud, matching stress and vowels until it feels natural.