Crossword clues for the word: ZEROIN The word ZEROIN has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for ZEROIN Showing 1 to 7 of 7 results Clue(s) "Focus on, with ""on""" Aim at the precise center Aim concentratedly Focus (on) Get closer and closer Position the cross hairs (on) Take close aim