Klingon forms nouns from verbs using the suffixs -wI', which means one who does or thing which does. This is similar to English -er in words like builder or toaster.

• baHwI' – gunner (baH "fire (a torpedo)" + -wI')
• So'wI' – cloaking device (So' "cloak" + -wI')

These derived nouns are regular nouns and may be used to form compound nouns:

• tIjwI'ghom – boarding party (tIjwI' "boarder" + ghom "group")
• tIjwI' – boarder (tIj "board" + -wI')

When referring to inanimate things, -wI' usually means thing which does or thing which is used for:

• joqwI' – thing which flutters (joq "flutter")
• nanwI' – gouging tool (nan "gouge")

When referring to living beings, it means one who does or one who is:

• baHwI' – one who fires
• pujwI' – one who is weak (puj "be weak")

TODO: Add something saying that nouns formed from verbs with -ghach also fall into the category of "Complex Nouns".