synthesis
PronouncedSIHN-thuh-suhs
nounWhen you put different simple things together to make something new and more complicated.
nounA chemical change where elements or simple substances join together to make a more complex substance.
Syllables
3 syllables
Letters
Related words (same phonics pattern)
Phonics breakdown
Phonics Rule: Letter S
Sound“s”·/s/
The letter S usually makes the /s/ sound, like in 'sun', 'sit', and 'sock'. Air hisses through a small gap.
S is a voiceless alveolar fricative when it makes the /s/ sound. At the end of many words it can also make a /z/ sound (as in 'dogs' or 'has'). At the start of a word it is always /s/.
Tip
S hisses like a snake — sssssun!
Examples
Phonics Rule: Y as Short I
Sound“ih”·/ɪ/
Y can act as a vowel making the short “ih” sound, like in 'gym' and 'myth'.
When Y is the only vowel in a syllable, it often says short “ih” — common in Greek-origin words: gym, myth, system, symbol, crystal, mystery.
Tip
Y says short i — gym, myth, system!
Examples
Phonics Rule: NT End Blend
Sound“nt”·/nt/
NT at the end of a syllable blends /n/ and /t/ together, like in 'tent', 'mint', and 'want'.
NT is a very common end blend. The nasal /n/ flows into the stop /t/. In fast speech the /t/ is sometimes barely voiced, but both sounds are present.
Tip
NT tents up at the end — tent, mint, hunt!
Examples
Phonics Rule: Letter H
Sound“h”·/h/
The letter H makes the /h/ sound, like in 'hat', 'hop', and 'hen'. It is a soft breath of air.
H is a voiceless glottal fricative — just a puff of air with no friction. It always appears before a vowel and is sometimes silent (as in 'hour' or 'honest').
Tip
H is a puff of air — breathe out and say /h/!
Examples
Phonics Rule: Schwa
Sound“uh”·/ə/
In unstressed syllables, vowels often make a lazy 'uh' sound called schwa, like the A in 'about'.
Schwa “uh” is the most common vowel sound in English. Any vowel letter can make the schwa sound when it's in an unstressed syllable. It sounds like a quick, lazy 'uh'.
Tip
Schwa is lazy — any vowel can say 'uh' when it's not stressed!
Examples
Phonics Rule: Letter S
Sound“s”·/s/
The letter S usually makes the /s/ sound, like in 'sun', 'sit', and 'sock'. Air hisses through a small gap.
S is a voiceless alveolar fricative when it makes the /s/ sound. At the end of many words it can also make a /z/ sound (as in 'dogs' or 'has'). At the start of a word it is always /s/.
Tip
S hisses like a snake — sssssun!
Examples
Phonics Rule: Schwa
Sound“uh”·/ə/
In unstressed syllables, vowels often make a lazy 'uh' sound called schwa, like the A in 'about'.
Schwa “uh” is the most common vowel sound in English. Any vowel letter can make the schwa sound when it's in an unstressed syllable. It sounds like a quick, lazy 'uh'.
Tip
Schwa is lazy — any vowel can say 'uh' when it's not stressed!
Examples
Phonics Rule: Plural -S (/z/ sound)
Sound“z”·/z/
After a buzzing sound or a vowel, the plural ending says /z/ — like 'dogs' and 'shoes'.
Put a finger on your throat and say 'zzzz' — you feel a buzz. When the word ends in a buzzing (voiced) sound or a vowel, the plural ending buzzes too and says /z/. This happens whether the word is spelled -s (dogs) or -es (shoes, trees), because in shoes the e is silent and only the s is sounded. Most people never notice they are doing this.
Examples
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