The expression "is afraid" refers to being scared or fearful about something. However, there are many other words that can be used to convey this emotion, such as "is anxious", "is apprehensive", "is nervous", "is uneasy", "is terrified", "is petrified", "is panicked", "is alarmed", "is horrified", "is intimidated" and "is intimidated." Using synonyms when writing or speaking can provide greater variety and help to convey emotions more accurately. Ultimately, it is important to choose the right word for the context and the tone that one wishes to convey.