LinuxDig.com : Linux Dictionary : O Definition List

oxdvi.real	oxdvi.bin	oxdvi
Owner	ovp2ovf	ovf2ovp
overkill	ov511-source	outocp
outguess	otp2ocp	otp
otangle	oss-preserve	OSS (Open Sound System)
OSS	OSPF (Open Shortest Path First)	OSPF
oskit	OSI	osh
OSF (Open Software Foundation)	OSF	osdclock
OS/2	OS (operating system)	OS
orville-write	orphaned i-node	orphan
orp-classpath	orp	oroborus
original-awk	oregano	orbit2
ORBit	Orange Linux	Orange Book
Optoelectronics	option	OPTIND
Optimization	OPTERR	OPTARG
opt	opl2ofm	opie-server
opie-client	Operating system	OpenZaurus
Openwall GNU/Linux	openvt	openvrml-lookat
openverse	openuniverse	openssl
openssh	opensp	OpenOffice.org
openoffice	opennap	OpenNA Linux
openmotif	openmosix	openmcu
openldap	openjade	openh323gk
OpenGL	opengate	OpenClassroom
openc++	openbabel	openam
openafs	open-source	open-amulet-images
Open System Interconnection (OSI) reference model	open standard	Open Source Software
Open Source	Open Source	Open Sound System
open architecture	open	opalmod
oops	oonsoo	oo2c
oo-browser	OO	onshore-timesheet
Online/Offline	oneliner	oneko
one-time password (S/Key) . . . .	one-time pad (Vernam Cipher)	OnCore OS
omt	Omoikane GNU/Linux	omniidl
Omni	omlcs	omega-rpg
omega	olwm	olvwm
oleo	oldps	OLAP
okumura-clsfiles	oidentd	ohphone
ogle	ogginfo	oggenc
ogg123	ogg	oftpd
ofm2opl	OEone HomeBase	odvitype
odvips	odvicopy	odontolinux
odbcinst1	odbc-postgresql	od
octave-sp	octave-matcompat	octave-forge
octave-epstk	octave-ci	octave
oclock	ocamlweb	ocamltk
ocaml	obscurity	obliq
Objective C	Object-Oriented	objdump
objcopy	objc-poc	oaf
O'Reilly, Tim