IPA: /ˌɪntərˈvɪzəˌbɪlɪti/
KK: /ˌɪntərˈvɪzəˌbɪlɪti/
The condition where two places can see each other clearly, meaning they are visible to one another.
The intervisibility of the two towers allowed the guards to communicate without using radios.
Intervisibility → It is formed from "inter-" (meaning between) and "visibility" (from Latin "visibilis", meaning able to be seen). The word describes the condition of being able to see one another from different locations, hence, visibility between places.
Think of being able to see 'between' ('inter-') different locations — that's what intervisibility means.