Phoneme – The smallest unit of sound, e.g. c-a-t, sh-o-p.
Grapheme – Written or visual representation of a phoneme, which can be made up of one or more letters. E.g. /a/, /sh/.
G.P.C – Grapheme phoneme correspondance.
Diagraph – Two Letters represent one sound, e.g. ch-u-r-ch.
Consonant Diagraph – Two cononants representing one phoneme, e.g. sh, th, ch.
Vowel Diagraph – Two vowels representing one phoneme, e.g. ee.
Split Diagraph – Two letters were the vowel and phoneme are split e.g. m-a-k-e.
Adjacent Consonants – two or three consonants with discrete sounds, these are blended together, e.g. gr.
Segementing – To split up a word into the individual phonemes to spell it.
Blending – Blending the phonemes to pronounce the word.