If something is a sore point with someone, it is likely to make them angry or embarrassed if you try to discuss it.
prove a point
If you prove a point , you show other people that you know something or can do something, although your action may have no other purpose .
a case in point
If you say that something is a case in point , you mean that it is a good example of something you have just mentioned .
a sticking point
a problem which stops you from achieving something, especially in a series of negotiations or a discussion
make a point of
If you make a point of doing something, you do it in a very deliberate or obvious way.
stretch a point
If you stretch a point , you describe something in a way which is not accurate , although it may be partly true .
try for a point
to make an effort or attempt
up to a point
If you say that something is true up to a point , you mean that it is partly but not completely true.
be a sore point with someone
if a particular subject is a sore point with someone, it makes them feel angry , embarrassed , or upset
not to put too fine a point on it
said to mean that what you are about to say may sound unpleasant , unkind , or critical
score a point over / score points off
If you score a point over someone, or score points off them, you gain an advantage over them, usually by saying something clever or making a better argument .
try
If you try to do something, you want to do it, and you take action which you hope will help you to do it.