(computing) Initialism of open-source software / (education) Initialism of out-of-school suspension. / (telecommunications) Initialism of operations/operational support system.

(historical) Initialism of Office of Strategic Services (a United States intelligence agency formed during World War II).

Alternative spelling of 'oss.

plural of OS

plural of OSS

plural of OSS

Pronunciation spelling of horse.

plural of 'Obby 'Oss

(UK) A male dancer dressed as a horse who cavorts through the town pretending to capture young maidens, as part of a May Day festival in Padstow, Cornwall, England.

(transitive, intransitive) To transform (or cause to transform) from a softer animal substance into bone; particularly the processes of growth in humans and animals.