Close-fitting and On the hook

Close-fitting adjective - Fitting closely but comfortably.

On the hook and close-fitting are semantically related. In some cases you can use "On the hook" instead an adjective phrase "Close-fitting".

On the hook adjective - Caught in a difficult or dangerous situation.

Close-fitting and on the hook are semantically related. Sometimes you can use "Close-fitting" instead an adjective phrase "On the hook".