Crossword clues for the word: CSC The word CSC has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for CSC Showing 1 to 8 of 8 results Clue(s) "Sine's reciprocal, in trig: abbr." Civil service group. Former govt. personnel agcy. Math ratio: Abbr. Palindromic trig function Sin reciprocal, in trig The ___ Kid (5) Trig function: Abbr.