SET: phrasal verbs [advanced]

Verb start doing something, esp. with determination
set about
While the rabbit cooks, I grind up part of a charred branch and set about camouflaging my orange pack. The black tones it down, but I feel a layer of mud would definitely help. Of course, to have mud, I’d need water . . .
Verb do away with or put an end to
The father knelt beside his hesitant daughter and gently encouraged her to set aside her fears and take a seat. “Don’t worry,” he whispered in her ear during a family outing to the circus, “it’s just a little kitty.”
Verb begin to happen or be apparent
Springtime in Paris is usually a time to celebrate, but this year the warm weather has brought concern and irritation. A menacing smog has set in over the city, causing the government to enforce a car ban.
Verb begin an undertaking, like a project or journey
The U.S. Coast Guard cutter Polar Star has engines that can deliver 75,000 horsepower. That's 25 times the punch of the icebound Shokalskiy, the ship that the Polar Star has now set out to rescue.
Verb construct, build, or erect
set up
Army ants send out raiding parties that decimate everything in their path. At night they set up temporary bivouacs.