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Terms for subject Abbreviation (1085 entries)

OMG	Oh my god!
on av.	on average
ONNA	Oh no, not again
ONNTA	Oh no, not this again
ONNYA	Oh no, not you again
OOC	out of character
OOTC	obligitory on topic comment
OP	Orange Pekoe
OPEC	Organization of Petroleum Exporting Countries
opp.	opposite
ord.no.	order number
orig.	original
Orth.	Orthodox
OS	ordinary seaman
OSI	open systems interconnection
OT	Old Testament
OTB	off to bed
OTOH	on the other hand
OTOOH	on the other other hand
OTTH	on the third hand