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Definition
2024
HCO
HCO
English
Initialism
HCO
H
earing
C
arry
O
ver
, a service or
device
that allows speech-disabled users with hearing to listen to the person they are calling.
(
astronomy
)
Initialism of
Harvard College Observatory
.
References
hearing-carry-over
Anagrams
hoc
,
och
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