賭博 is read as とばく (tobaku) and means gambling.
とばく
tobaku
とばくじょう
gambling house
とばくだい
gambling table
とばくし
gambler
でんすけとばく
densuke
はく
doctor
ぶんはく
doctor of literature
せかいはく
world expo
ばんこくはく
international exposition
きゅうはく
Kyushu National Museum (abbr)
ほうはく
Doctor of Laws
こうはく
Doctor of Engineering
ばんぱく
world fair