The state of being difficult, or hard to do.
An obstacle that hinders achievement of a goal.
We faced a difficulty in trying to book a flight so late.
(sometimes in the plural) Physical danger from the environment, especially with risk of drowning
2012 August 2, "Children rescued after getting into difficulties in Donegal" BBC Online
An objection.
That which cannot be easily understood or believed.
An awkward situation or quarrel.