Crossword clues for the word: NAILUP The word NAILUP has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for NAILUP Showing 1 to 8 of 8 results Clue(s) "Close tightly, as a crate" "Close tightly, in a way" "Enclose tightly, as in a box" "Hang on the wall, say" "Seal, as a shipping crate" "Seal, as in a crate" Post with the aid of a hammer Seal, as a packing crate