(obsolete) The gutter at the edge of a street; a surface drain. / (obsolete) A puddle.

In the International System of Units, the base unit of thermodynamic temperature; ¹⁄_(273.16) of the thermodynamic temperature of the triple point of water. Shown as "K".

The subfield of cryptography in which all information used to encode a message is assumed to be publicly available.

(music) An indication of the key of a composition, giving the number of sharps or flats in the corresponding scale.

(chiefly Commonwealth of Nations) Often with a prepositional phrase, or with to and an infinitive: showing a quick and ardent responsiveness or willingness; eager, enthusiastic, interested.

(transitive, rare) To make cold, to sharpen.

A prolonged wail for a deceased person.

(intransitive) To utter a keen. / (transitive) To utter with a loud wailing voice or wordless cry. / (transitive) To mourn.

(obsolete) To give birth, conceive, beget, be born; to develop (as a fetus); to nourish, sustain (as life).

(transitive, chiefly Scotland) To know, perceive or understand. / (obsolete, chiefly Scotland) To discover by sight; to catch sight of; to descry.