What is the meaning of Basho?

A sumo tournament of any kind.

Rōmaji transcription of ばしょ

below; low (on or near the ground)

low (small in amount or quantity, value, force, energy, &c.)

low (in pitch, due to being produced by relatively slow vibrations)

below; beneath; under

first-person singular present indicative of bashar

third-person singular preterite indicative of bashar

Source: wiktionary.org