(nautical) To remove, or fasten, all loose material, or partitions prior to a naval engagement. / (by extension, figuratively) To prepare for action.

(transitive) To clarify, to correct a misconception. / (intransitive) To depart or disappear. / (intransitive, of skin or medical images) To become free of certain blemishes.

(simile, sarcastic) Unclear; difficult or impossible to understand or interpret.

(law) Full ownership of something, usually land, that is free of any encumbrances.

(simile, of an object) Entirely transparent. / (simile, of a statement) Easily understandable.

black ice

Having clear, sharp sight. / (figuratively) Mentally acute and perspicacious.

(sports) The completion of a show jumping course without knocking down any of the obstacles. / (by extension) The completion of a series of tasks without error.

(informal) To leave abruptly. / To clear the table.

Alternative spelling of crystal clear