What suffix would you add to the word smoke?

It depends on what you want to convey! Here are some options with their meanings:

General Suffixes:

* -y: To make it an adjective (smoky)

* -ing: To make it a present participle (smoking)

* -ed: To make it a past participle (smoked)

* -er: To make it a noun for someone who smokes (smoker)

* -less: To indicate the absence of smoke (smokeless)

More Specific Suffixes:

* -screen: A device to deflect smoke (smokescreen)

* -stack: The structure from which smoke escapes (smokestack)

* -jump: To jump out of a moving vehicle (smokejump)

Other Possibilities:

* -bomb: A device that releases smoke (smoke bomb)

* -detector: A device that senses smoke (smoke detector)

Let me know what you're trying to describe, and I can help you choose the best suffix!