To till or plow land to prepare it for cultivation; figuratively, to cultivate or develop something through effort.
春になったので父は畑を耕し始めた。
With spring here, my father began plowing the fields.
農家は土をよく耕してから種をまく。
Farmers thoroughly cultivate the soil before sowing seeds.
彼は長年にわたり自分の庭を耕して野菜を育てている。
He has cultivated his garden for many years and grows vegetables.