Crossword clues for the word: FIRSTBASE The word FIRSTBASE has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for FIRSTBASE Showing 1 to 8 of 8 results Clue(s) Area Lou Gehrig covered Corner on a diamond Destination of one who walks? Diamond corner It may be reached on a date Singles hangout? Where a player ends up after hitting a single: 2 wds. Where the second parts of 17-, 29- and 46-Across might get you