noun
first tournament for a wrestler; debut on the dohyō
Sumo term referring to a wrestler's first appearance in an official tournament or on the raised ring.
彼は初土俵を踏んだばかりの新弟子です。
He is a new apprentice who has just made his debut on the dohyō.
初土俵の場所で白星を挙げた。
He won his first bout in his debut tournament.