There are so many English words spelled with gh. There's this tricky trio:
though -- pronounced "tho" /θoʊ/
through -- pronounced "throo" /θru/
thorough -- pronounced "ther-o" /θɚroʊ/
And many more:
And many of my students don't know how to pronounce these words! Here's a funny video showing how confusing they are:
(If this link is broken, you can find this video by searching for "Lucy and Ricky English pronunciation ough" on www.YouTube.com)
So here are 3 rules for pronouncing GH:
1. If GH is at the beginning of a word or a syllable, it sounds like G:
2. If GH is one of these 5 common words, it sounds like F:
(There's also slough, trough, and roughy, but they are not common words.) If you just remember these 5, then you will be ready to use Rule 3:
3. If it doesn't follow rule 1 or 2, then the GH is silent.
All the other words in English have a silent GH, like:
I went through all the GH words and put them into a handy chart for you. These are organized by the sound:
Hope this helps!
Keep on learning English!