This is the 4736th most frequent Japanese word.
本道
"本道" (hondō) means "main path" or "right way," often referring to the proper course or the central/main hall of a temple.
Here, '本道' refers to the primary or main road.
この道は本道であり、目的地に直接行けます。
This road is the main route, and you can reach the destination directly.
In this sentence, '本道' metaphorically means the true or correct path in life.
彼は勉強こそが人生の本道だと信じています。
He believes that studying is the main path in life.
'本道' here refers figuratively to the appropriate method or approach in a given field, namely learning.