say it: too-DOO
to-do is a noun meaning "a disorderly outburst or tumult". It carries one recorded sense.
a disorderly outburst or tumult
“they were amazed by the furious disturbance they had caused”
Definitions, synonyms and semantic relations for to-do come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.