Scare tactic is a strategy used to frighten or intimidate someone into doing something. It involves using fear as a means of coercion. The two crossword solutions for the term 'scare tactic' are BOO (3 letters) and THREAT (6 letters). BOO is an exclamation used to startle someone, usually with the intention of causing fear or surprise. THREAT is a declaration of intent to harm or punish someone if they do not comply with a demand. Both words are commonly used in scare tactics, as they are effective in creating fear and coercing people into action.