This is the 5179th most frequent Chinese word.
wai
"Wài" (外) means "outside" or "external" in English.
Here, '外' (wài) means 'outside' and describes the external area of the bag.
这个包的外面有一个口袋。
There is a pocket on the outside of this bag.
'外面' (wài miàn) translates to 'outside' and is used to refer to the external view or surface.
你可以从外面看见里面的情况。
You can see the situation inside from the outside.
In this sentence, '外' (wài) is part of the word '外国' (wài guó), which means 'foreign country', and indicates distance or external origin.