Vessel with two silent letters

YACHT

Not available

The word "yacht" fits because it’s a type of vessel (a boat) and contains two silent letters: the "c" and the "h." You don’t pronounce either when saying it out loud—it sounds like "yot." This kind of clue plays on spelling rather than meaning, which is common in crosswords to make solvers think about how words are written, not just what they represent.