Definitions

1. 1.to mask (to cause someone or something to become harder to see)
2. 2.to mask (to hide one's emotions)
3. 3.to mask oneself (to cause one's traits or intentions to become less clear or visible)
4. 4.to mask oneself (to wear something so as to look like someone else or not be visible)
5. 5.to mask oneself (to hide)