Last Updated：2025/11/19
(nautical, communication, aviation) A tall, slim post or tower, usually tapering upward, used to support, for example, sails or observation platforms on a ship, the main rotor of a helicopter, flags, floodlights, meteorological instruments, or communications equipment, such as an aerial, usually supported by guy-wires (except in the case of a helicopter).
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mast
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Source Word
mast
IPA(Pronunciation)
Noun
(nautical,
communication,
aviation)
A
tall,
slim
post
or
tower,
usually
tapering
upward,
used
to
support,
for
example,
sails
or
observation
platforms
on
a
ship,
the
main
rotor
of
a
helicopter,
flags,
floodlights,
meteorological
instruments,
or
communications
equipment,
such
as
an
aerial,
usually
supported
by
guy-wires
(except
in
the
case
of
a
helicopter).
Japanese Meaning
船舶において、帆や観測台、信号・通信機器などを支えるための、上に向かって細くなる直立した支柱（帆柱） / 航空や通信分野では、フラッグや照明、気象計器、アンテナなどを支持するための細長い塔・ポール
Sense（1）
(nautical,
communication,
aviation)
A
tall,
slim
post
or
tower,
usually
tapering
upward,
used
to
support,
for
example,
sails
or
observation
platforms
on
a
ship,
the
main
rotor
of
a
helicopter,
flags,
floodlights,
meteorological
instruments,
or
communications
equipment,
such
as
an
aerial,
usually
supported
by
guy-wires
(except
in
the
case
of
a
helicopter).
（ plural ）
