Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun os

5 senses of os

Sense 1
os -- (a mouth or mouthlike opening)
       => orifice, opening, porta -- (an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart")

Sense 2
osmium, Os, atomic number 76 -- (a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known)
       => metallic element, metal -- (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Sense 3
operating system, OS -- ((computer science) software that controls the execution of computer programs and may provide various services)
       => software, software program, computer software, software system, software package, package -- ((computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory; "the market for software is expected to expand")

Sense 4
oculus sinister, OS -- (the left eye)
       => eye, oculus, optic -- (the organ of sight)

Sense 5
bone, os -- (rigid connective tissue that makes up the skeleton of vertebrates)
       => connective tissue -- (tissue of mesodermal origin consisting of e.g. collagen fibroblasts and fatty cells; supports organs and fills spaces between them and forms tendons and ligaments)