Ellipsis (…) - An ellipsis creates an intriguing and mysterious atmosphere in the text. In addition, it can be used to show that some letters or even words are omitted.
For example:
So… what happened next?
She was smart, funny and pretty but… something still felt wrong.
Slash (/) - You might need to write a fraction, a measurement, or to suggest alternatives in your text. These are just three of the instances where you will have to use a slash.
For example:
For this recipe, you will need 1/2 glass of water and 3/4 glass of flour.
The car was going as fast as 120 km/h.
You need to press the On/Off button.