Dic: set (some usages as a verb and adjective)

■ [VERB] V n -ing, be V-ed adj/adv, V n with prep△You can use set to say that a person or thing causes another person or thing to be in a particular condition or situation. For example, to set someone free means to cause them to be free, and to set something going means to cause it to start working.

• Set the kitchen timer going...
• A phrase from the conference floor set my mind wandering...
• Dozens of people have been injured and many vehicles set on fire...
• Churchill immediately set into motion a daring plan.

■ [ADJ] v-link ADJ on/against n/-ing△If you are set on something, you are strongly determined to do or have it. If you are set against something, you are strongly determined not to do or have it.

• She was set on going to an all-girls school...

■ [VERB] V n n △If someone sets you a task or aim or if you set yourself a task or aim, you need to succeed in doing it.

• I have to plan my academic work very rigidly and set myself clear objectives...

.... COBUILD

CF. more example sentences offered in OALD:

• Her manner immediately set everyone at their ease.
• He pulled the lever and set the machine in motion.
• The new leader has set the party on the road to success.
• The hijackers set the hostages free.
• Her remarks set me thinking.

... △to cause sbd/sth to be in a particular state; to start something happening

• She's set on a career in medicine.
• He's set on getting a new car

... △to want to do or have sth very much; to be determined to do sth

• Who will be setting (= writing the questions for) the French exam?
• What books have been set (= are to be studied) for the English course?
• She's set a difficult task for herself.
• She's set herself a difficult task.
• I've set myself to finish the job by the end of the month.

... △to give somebody a piece of work, a task, etc

CF. Dic: [set] be set in your ways