“to ride / to board” in Japanese is 乗, read jou, no (じょう, の). It is a Grade 3 Kyōiku kanji, taught in year 3 of Japanese elementary school, and appears in words such as 乗る (to board).
What does 乗 mean?
バスに乗る。
Same sound, different character — the classic trap. Compare them side by side: