IPA: /ˌʌndərˈstændəbl/
KK: /ʌndərˈstændəbl/
Able to be comprehended or grasped easily; clear enough for someone to follow or make sense of.
The teacher explained the topic in an understandable way so that all the students could follow along.
Understandable → It is formed from "under-" (meaning among or between) and "stand" (from Old English "standan", meaning to stand). The suffix "-able" (meaning capable of) indicates that something can be understood. Thus, the word "understandable" means capable of being comprehended or grasped.
Think of being able to 'stand among' ideas ('under-') and 'grasp' them ('stand') — that's why something understandable is easy to comprehend.