H occurs as a single-letter grapheme (with value /h/ or silent) and in various digraphs, such as ch (/tʃ/, French /ʃ/, Greek and Italian /k/, German & Scots /x/), gh (silent, /g/, or /f/) , ph (Greek words with /f/), rh (Greek words with /r/), sh (/ʃ/), th (either /θ/ like thin or /ð/ like [...]