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The FLOSS Rule

1-syllable word + short vowel + F, L, S or Z? Double the final consonant!

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Re-uploaded with fixed audio.

FLOSS It!

Each word below is missing its doubled consonant. Apply the FLOSS rule — pick the correct spelling!

Question 1 of 30

🔔 bel

Which spelling applies the FLOSS rule?

The Rule

THE FLOSS RULE — also known as the FLSZ Rule
F L S Z
1 syllable + short vowel + F / L / S / Z → double it!

If a one-syllable word ends with a single short vowel directly followed by the consonants F, L, S or Z, then you typically double the final consonant.

Do not apply the FLOSS rule to: words with a long vowel sound, multisyllabic words, or words with more than one consonant after the vowel.

riff — FF bell — LL boss — SS jazz — ZZ cliff — FF still — LL

Song Lyrics

F   L   S   &   Z
Double these letters if you can see,
They're at the end of a one syllable word
and a long vowel sound is heard.
(FLOSS Rule)

FF

off
cliff
sniff
fluff

F   L   S   &   Z
Double these letters if you can see,
They're at the end of a one syllable word
and a long vowel sound is heard.
(FLOSS Rule)

LL

bell
yell
hill
still

F   L   S   &   Z
Double these letters if you can see,
They're at the end of a one syllable word
and a long vowel sound is heard.
(FLOSS Rule)

SS

mess
boss
hiss
press

F   L   S   &   Z
Double these letters if you can see,
They're at the end of a one syllable word
and a long vowel sound is heard.
(FLOSS Rule)

ZZ

buzz
fuzz
jazz
fizz