sure (adjective) LISTEN
If you are sure, it means that you believe something is true and you don’t have any doubts about it.
- I think it’s a type of tree, but I’m not sure.
- Are you sure (that) it’s a good idea?
If you make sure, it means that you do something so that you will know if something is true.
- Can you make sure that he got my message? (=I don’t know if he got my message. Can you ask him?)
When we want to say yes to someone, we sometimes say, “Sure!” For example: “Can you help me with this?” “Sure!”
In pop culture
Monty Python and the Holy Grail is a comedy movie about the legend of King Arthur. In this video from the movie, a man wants the Prince to stay in his room. He says to the guards, “Make sure the Prince doesn’t leave this room, until I come and get him.” But the guards don’t understand. He has to say it again and again. How many times does he have to say it?
There are other meanings of sure.