OPTO
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See also:
opto
and
opto-
English
[
edit
]
Noun
[
edit
]
OPTO
Initialism of
one
-
person
train
operation
.
Anagrams
[
edit
]
topo
,
poot
,
topo-
,
Toop
Categories
:
English lemmas
English nouns
English countable nouns
English nouns with unknown or uncertain plurals
English initialisms
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