To preserve food (or sometimes other things) in a salt, sugar or vinegar solution.
These cucumbers pickle very well.
To remove high-temperature scale and oxidation from metal with heated (often sulphuric) industrial acid.
The crew will pickle the fittings in the morning.
(in the Python programming language) To serialize.
To pour brine over a person after flogging them, as a method of punishment.
To eat sparingly.
To pilfer.
An instance of processing something in brine or other solution.
A process by which the oxide scale on steel (especially stainless steels) is chemically removed (by strong acids).