The term 'zeroed in' is a phrase that means to focus on something with great precision and accuracy. The crossword solutions for this term are 'homed, ' 'AIMED, ' 'focused, ' and 'pored.' 'Homed' means to have found a place to stay, while 'AIMED' means to direct or point something at a target. 'Focused' means to concentrate one's attention or effort on a particular object or activity, and 'pored' means to read or study something carefully and thoroughly. All of these words together suggest that the person is zeroing in on something with great attention and accuracy.