Crosswordiee.com

% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Leakproof:

LEAKPROOF: Sealed so as not to allow seepage
LEAKPROOF: Snug, as a roof.
LEAKPROOF: Like a good travel mug
SEAL: Make leakproof
GASKET: Leakproofing item
WATERTIGHT: Leakproof
LUTED: Rendered leakproof, in a way