The English /ch/- and /jj/-sound
The /ch/ is voiceless and /jj/ is voiced.
The /ch/-sound is often spelt with the letters ‘ch’. For example: watch, change
The /jj/-sound can be spelt in the following ways:
‘j’ jury (‘j’ is never used at the end of words)
‘gi’ giant
‘ge’ huge
‘dge’ judge
‘age’ baggage