1.
something that is difficult to deal with
2.
a tough person, especially a child, regarded with some affection or amusement because he or she is rather self-assertive and resilient
3.
a difficult question or problem
4.
someone who is physically or mentally strong
1.
something that is difficult to deal with
2.
a tough person, especially a child, regarded with some affection or amusement because he or she is rather self-assertive and resilient
3.
a difficult question or problem
4.
someone who is physically or mentally strong