The "gu" combination typically makes a hard "g" sound.
For example:
* guard: /ɡɑːrd/
* guest: /ɡɛst/
* guitar: /ɡɪˈtɑːr/
However, there are some exceptions:
* "gue" and "gui" often make a "gw" sound:
* guinea: /ˈɡwɪni/
* guide: /ɡaɪd/
It's important to note: These are general rules, and some words might have unusual pronunciations or variations depending on their origin or dialect.