The term 'attack, with 'AT'' can be solved by two four-letter words: 'HAVE' and 'COME'. The word 'HAVE' is a verb that means to possess or own something. It can also mean to take part in an activity or experience. The word 'COME' is a verb that means to move towards a place or person, or to arrive AT a certain point. It can also mean to happen or occur. Together, these two words can be used to describe an attack, with the preposition 'AT' being implied.