Physical danger from the environment, especially with risk of drowning
An obstacle that hinders achievement of a goal.
The state of being difficult, or hard to do.
An objection.
An awkward situation or quarrel.
That which cannot be easily understood or believed.
A homogeneous mixture, which may be liquid, gas or solid, formed by dissolving one or more substances.
An act, plan or other means, used or proposed, to solve a problem.
An answer to a problem.
A product, service or suite thereof, especially software.
The act of dissolving, especially of a solid by a fluid; dissolution.
To treat with a solution.