Synonym of the word "Abstain" is: 

The correct answer is: Option 3.

Key Points

• The word "Abstain" means to voluntarily choose not to do something or to refrain from doing it. (परहेज करना)
  • Example: He decided to abstain from drinking alcohol during the month of January.
• "Refrain" means to stop oneself from doing something; it is often used when someone decides not to engage in a particular activity. (रोकना)
  • Example: Please refrain from smoking in this area.
• Hence, we can infer that the synonym of 'Abstain' is 'Refrain'.

Therefore, the correct answer is: Option 3.

Additional Information

Here are the other options explained along with their Hindi meanings and example sentences:

• Embrace (गले लगाना): To accept or support willingly and enthusiastically.
  • Example: She decided to embrace the new opportunities presented to her.
• Allow (अनुमति देना): To give permission for something to happen.
  • Example: The teacher allowed the students to leave early.
• Use (उपयोग करना): To take, hold, or deploy something as a means of accomplishing a purpose.
  • Example: You should use a pen to fill out this form.