A convention whereby Esperanto’s circumflex accents (ĉ, ĝ, ĥ, ĵ, ŝ) are replaced by an h after the letter (ch, gh, hh, jh, sh) and the breve (ŭ) is left out entirely (u), for convenience of typing.

An early automated flour roller mill system.

(zoology) The system of connected water channels that is unique to sponges (Porifera). / (zoology, dated) The hydrostatic skeleton of certain marine gastropods.

The Copernican system of astronomy, erroneously attributed to Pythagoras.

a non-eliminating tournament format.

(Philippines) Corruption involving patronage, nepotism and favoritism, especially in politics and government.

Synonym of star system

The system of buying and selling things via hire purchase.

(rail transport, historical) A block system in use on single-line railways, in which the stationmaster gives the driver a staff authorizing the driver to proceed over a given portion of track.

(UK, historical) The practice, abolished in 1871, of paying money to be made an officer in the cavalry and infantry regiments of the English and later British Army, without having to wait for promotion.