Love can mean a lot of different things for different people.

My definition: I believe love is first and foremost selfless. We are willing to put ourselves on hold for the other person's sake and give whatever we can to them for their happiness and well-being.

• You can see this trait in a parent who loves their child when they take the day off work to take care of their sick kid.
  
• You can see this trait in a friend who loves their best friend when they drop whatever they are working on to be on the phone for hours at 2 am in the morning when they call crying in despair.
  
• You can see this trait in a spouse who loves their significant other when they plan surprises for anniversaries or even work extra shifts to earn a little more money for a nice romantic/meaningful present.
  
• You can see this trait in a teacher or coach who watches their student develop when they go to support the child at every game or tournament and are willing to invest their time in really understanding the child's journey through life.

It is not always about self-sacrificing. But I find that through love, we are willing to do anything for the ones we love. So in that sense, there is not a difference in the definition of love among the different types of love.