(taxonomy) A coherent system of taxonomic judgements on circumscription and placement of the considered taxa. A taxonomic system is restricted to a large but limited part of the living world.

(anatomy) The skin, feathers and other outer coverings of an animal.

A navigation system that produces hyperbolic lines of position by the measurement of the difference in the time of reception, or the phase, of radio signals from multiple synchronized transmitters at fixed locations.

A system used to determine the result of an election based on the preferences expressed by voters.

feudalism

A burglar alarm.

Any electronic navigation system which uses space satellites as radio signal sources and position references. / A satellite network used for implementing such a system.

(computing) A computer software system for organizing and facilitating collaborative creation of documents and other content, especially for loading to a website

(neuroanatomy) One of the divisions of the autonomic nervous system, based between the brain and the spinal cord, that slows the heart and relaxes muscles.

A system of beliefs.