An obstacle that hinders achievement of a goal.
Physical danger from the environment, especially with risk of drowning
The state of being difficult, or hard to do.
An objection.
An awkward situation or quarrel.
That which cannot be easily understood or believed.
The most extreme or furthest point of something.
A hand or foot.
A limb (“major appendage of a human or animal such as an arm, leg, or wing”).
An extreme measure.