IPA: /ˈæntiˌbʌɡ/
KK: /ˈæntiˌbʌg/
Describing something that helps to prevent or eliminate bugs, either in terms of surveillance devices or insects.
The antibug spray effectively kept the mosquitoes away during the picnic.
Antibug is formed from "anti-" (meaning against) and "bug" (from Old English "bugge", meaning a frightening creature or goblin). The word "antibug" refers to something that works against bugs or pests.
Think of 'against' ('anti-') something that is a 'frightening creature' ('bug') — that's why antibug means something that fights against pests.
No commonly confused words.