The noun has 5 meanings:
Meaning #1:
the basic unit of thermodynamic temperature adopted under the System International d'Unites
Synonym: kelvin
Meaning #2:
a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
Synonyms: potassium, atomic number 19
Meaning #3:
the cardinal number that is the product of 10 and 100
Synonyms: thousand, one thousand, 1000, M, chiliad, G, grand, thou, yard
Meaning #4:
a unit of information equal to 1024 bytes
Synonyms: kilobyte, KB
Meaning #5:
the 11th letter of the Roman alphabet
