Tout un sound
Defined in 3 dictionaries — Ballentine's (1916), Black's (1910), Stimson (1881)
Ballentine's Law Dictionary
James A. Ballentine · 1916
All one sound. See Idem gonans.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
L. Fr. All one sound; sounding the same; idem sonans.
Glossary of Technical Terms, Phrases, and Maxims of the Common Law
Frederic Jesup Stimson · 1881
yr. {Idem sonans.) The same in sound.