fastest
adjMoving with the greatest speed, or able to do so more than anything else.
adjAhead of the correct time or schedule by the greatest amount.
adjMost able to transfer data in a very short time.
adjMost firm and not running or fading when subjected to wetness or intense light.
adjMost deeply or soundly asleep.
Syllables
2 syllables
Letters
Phonics breakdown
Phonics Rule: Letter F
The letter F makes the /f/ sound, like in 'fish', 'fun', and 'fox'. The upper teeth touch the lower lip.
F is a voiceless labiodental fricative — the upper front teeth rest on the lower lip while air flows through to make the /f/ sound. It is very consistent.
Tip
F is for fish — and fish starts with /f/!
Examples
Phonics Rule: Short A
The letter A makes a short sound, like in 'cat' and 'bat'.
When the letter A appears in a closed syllable (a syllable that ends with a consonant), it usually makes the short A sound /æ/. This is one of the first vowel sounds students learn.
Tip
A says /æ/ like a cat that sat on a mat.
Examples
Phonics Rule: ST Blend
S and T blend together — you hear both sounds! Like in 'stop' and 'fast'.
The blend ST combines /s/ and /t/ spoken quickly together. It can appear at the beginning or end of a word.
Examples
Phonics Rule: Suffix -EST
Adding -EST means 'the most', like 'biggest' and 'fastest'.
The suffix -est makes a superlative — it means 'the most' of something. 'Big' → 'biggest' means the most big of all.
Examples
What is SnapPhonics?
A phonics reference for teachers, parents and learners. Every English word, broken into the sounds that make it — with audio, syllables, and the rule behind each spelling.
Save words to study lists, build flashcard decks, and scan your own worksheets and books.