POS

POS, Pos or PoS may refer to:

Linguistics

Part of speech, the role that a word or phrase plays in a sentence
Poverty of the stimulus, a linguistic term used in language acquisition and development
Sayula Popoluca (ISO 639-3), an indigenous language spoken in Veracruz, Mexico

P.O.S (rapper) (born 1981), or Stefon Alexander, American hip hop artist
Kelvin Mercer (born 1969), also known as Pos, member of the New York hip hop trio De La Soul
Pain of Salvation, Swedish progressive metal band
Paavo Siljamäki, Finnish DJ and producer, member of the English electronic group Above & Beyond. P.O.S is one of his aliases.

P/OS, operating system of DEC Professional PCs from Digital Equipment Corporation
Packet over SONET/SDH, a communications protocol for transferring packets over fiber networks
PERQ Operating System, operating system for PERQ workstations
Proof of space, a cryptocurrency blockchain distributed consensus method
Proof of stake, a cryptocurrency blockchain distributed consensus method

Post Office Sorting Van, a type of rail vehicle used in a Travelling Post Office train
SNCF TGV POS, a French high-speed train

Phi Omega Sigma (disambiguation), a Greek name for any of five different student organizations
Piece of shit, a phrase considered vulgar and profane in Modern English
Point of sale, location where payment is accepted
Point of service plan, a type of managed care health insurance plan in the US
Polytechnic Secondary School (Polytechnische Oberschule), the 10-year general educational system in East Germany
Priory of Sion, a fictitious secret society
Public open space, a planning term for an outdoor public forum