4 Kanji
24.
Meaningtraffic,pass through,avenue,commute,
Onyomiツウ (tsuu),
Kunyomiとお(る)、かよ(う) (too(ru)),
e.g.:
通常 - Tsūjō - generally,usually,
通知 - Tsūchi - notification,
通訳者 - Tsūyakusha -