A cause of difficulty, or potential embarrassment.
The several outermost layers of a banana, especially once removed from the rest of the banana, which may be slippery if stepped on.
The state of being difficult, or hard to do.
Physical danger from the environment, especially with risk of drowning
An obstacle that hinders achievement of a goal.
An objection.
An awkward situation or quarrel.
That which cannot be easily understood or believed.