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DOO
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Appendix:Variations of "doo"
English
edit
Noun
edit
DOO
(
uncountable
)
(
UK
,
rail transport
)
Initialism of
driver-only operation
.
Anagrams
edit
ODO
,
OOD
Categories
:
English lemmas
English nouns
English uncountable nouns
British English
en:Rail transportation
English initialisms